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Câu hỏi:

Exercise 8: Present simple tense or Present progressive tense: 34. He ( look) _________ after his cat. He ( feed) ___________ it twice a day. 35. My children (go)________________to school by bike. 36. We (go)_______________to supermarket to (buy)______________some food . 37. Mr.Hung (go)________________to Hanoi every month. 38. Ha (like)______________coffee, but I (not like)______________it. 39. She (like)________________Tea, but she (not like)____________________coffee. 40. I (love)_______________ cat but I (not love)____________dog. 41. Everyday, I (go)__________to school on foot, but today I (go)_________to school by bike. 42. Who you _________________(wait) for, Vien? - I _______________________(wait)for Mr.Hung.

Câu trả lời của bạn: 14:43 01/08/2021

35. go

36. go/buy

37. goes

38. likes/ don't like

39. likes / doesn't like

40. love / don't love

41. go/ am going

42. Who are you waiting for ?

/ am waiting

Câu hỏi:

Tìm lỗi sai trong câu Megan speak softly to her mother

Câu trả lời của bạn: 21:37 27/07/2021

speak -> speaks

Câu hỏi:

1.We spent 4 hours traveling to ha long bay 3.we didn't find it funny although it was a comedy 4.the ending of" the lion king" is moving

Câu trả lời của bạn: 21:04 27/07/2021

1. It took us 4 hours to travel to Ha Long Bay.

3. Despite a comedy, we didn't find it funny.

Câu hỏi:

Combine the sentences using these pronouns below: who whose, where, when. which

1.That’s the designer. I told you about the designer.

Các bạn giúp tớ câu này với!!!!

Câu trả lời của bạn: 21:00 27/07/2021

That’s the designer who I told you about.

Câu hỏi:

He did not ... Jogging in the evening. A)use to went. B) used to. C)used to go. D) use to go Giải thích luôn nha

Câu trả lời của bạn: 20:54 27/07/2021

D

use + to V

Câu hỏi:

Mark the letter A, B, C or D to indicate the most suitable response to complete each of the following exchanges. Question 27: “Well done! That’s a very nice picture!” “_________” A. Thanks. It’s nice of you to say so. B. Wow. What’s a nice compliment! C. Yes. I think so too. D. Right. I’ve painted a nice picture. Question 28: “Must I finish my homework now?” “_________” A. Yes, you may. B. Yes, you need. C. No, you can’t. D. No, you needn’t. Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. Question 29: The graduation is sad, because the time we studied together has come to an end. A. succeeded B. begun C. finished D. changed Question 30: Under the major’s able leadership, the soldiers found safety. A. guidance B. intensity C. flagship D. ability Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. Question 31: If you follow these simple rules, not only will you save money, but also the environment will be cleaner. A. earn B. count C. waste D. replace Question 32: Animal communication is not a straightforward subject. It’s complicated because animals communicate differently with each other. A. impossible to express B. difficult to understand C. easy to interpret D. interesting to study Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. Jeans are very popular with (33)_________ people all over the world. Some people say that jeans are the “uniform” of youth. But they haven’t always been popular. The story of jeans (34)_________ almost two hundred years ago. People in Genoa, Italy made pants. The cloth made in Genoa was (35)_________ “jeanos”. The pants were called “jeans”. In 1850, a salesman in California began selling pants made of canvas. His name was Levi Strauss. Because they were so strong, “Levi’s pants” became (36)_________ with gold miners, fanners and cowboys. Six years later Levis began making his pants with blue cotton cloth called denim. Soon after, factory (37)_________ in the US and Europe began wearing jeans. Young people usually didn’t wear them. Question 33: A. rich B. old C. young D. poor Question 34: A. start B. starts C. was starting D. started Question 35: A. call B. calls C. calling D. called Question 36: A. famous B. popular C. good D. wonderful Question 37: A. workers B. drivers C. cowboys D. fanners Read the following passage and mark the letter A, B or C on your answer sheet to indicate the correct answer to each of the questions. Smoking causes lung cancer, which is the number one cancer among men. Ninety percent of the people who get lung cancer die. Smoking is also the leading cause of mouth cancer, tongue cancer, and throat cancer. Many smokers have heart disease arid pneumonia. Smoking causes one million early deaths in the world every year. Smokers not only harm themselves but also harm others. Smokers breathe smoke out into the air. They breathe it out on their children and their wives or husbands. Children whose parents smoke have more breathing and lung problems than other children. Women who are married to smokers are more likely to have lung cancer than those married to non- smokers. We are all aware that smoking is bad. So why do people smoke?

Câu trả lời của bạn: 14:55 27/07/2021

27.A

28. B

29. C

30. A

31. C

32. B

33. C

34. D

35. D

36. B

37. A

Câu hỏi:

Mrs.Quyen dose volunteer work at the hospital. She is required teacher

Câu trả lời của bạn: 17:12 24/07/2021

Mrs.Quyen who does volunteer work at the hospital is a required teacher.

Câu hỏi:

1.france/hot/britaun,bút Spain 2.who/ intelligent/person/your class 3.don't/throw/plastic bags/because/you/reuse

Câu trả lời của bạn: 17:08 24/07/2021

2. Who is the most intelligent person in your class ?

3. Don't throw plastic bags because you can reuse them.

Câu hỏi:

1. Các bộ phận của hạt phân biệt hạt có 1 lá mầm và 2 lá mầm.

2. Điều kiện nảy mầm của hạt.

3. Các cách phát tán quả và hạt.

4. Kể tên các ngành thực vật đã học

5. Nêu vai trò của thực vật.

6. Thế nào là thực vật quý hiếm.

7. Vì sao thức ăn hay bị ôi thiu và cách bảo quản thức ăn.

8. Tác hại của thuốc phiện với sức khỏe con người.

Câu trả lời của bạn: 17:03 24/07/2021

1.

Phân biệt hạt 1 lá mầm và hạt 2 lá mầm:

- Hạt 1 lá mầm:

+ Có dạng thân cỏ (trừ một số ít có dạng thân đặc biệt như cây cau, cây dừa, tre, nứa,...)

+ Phôi của hạt chỉ có một lá mầm

+ R

Câu hỏi:

Cho (C): (x-1)^2+(y-2)^2=5. M(6;2). Viết ptđt qua M cắt (C) tại A và B sao cho MA^2+MB^2=50

Câu trả lời của bạn: 16:49 24/07/2021

Đường tròn (C) có tâm I(1,2), bán kính $R = \sqrt{5}$

$M I = \sqrt{{(6 - 1)}^{2} + {(2 - 2)}^{2}} = 5 > \sqrt{5} = R \to Đ i ể m M n ằ m n g o à i h ì n h t r ò n, t a c ó : A B^{2} = {|\vec{A B}|}^{2} = {(|\vec{M B} - \vec{M A}|)}^{2} = {|\vec{M B}|}^{2} + {|\vec{M A}|}^{2} - 2 |\vec{M A}| |\vec{M B}| = M A^{2} + M B^{2} - 2 P_{M I} = 50 - 20 \times 2 = 10 \to A B = \sqrt{10} G ọ i H l à h ì n h c h i ế u v u ô n g g ó c c ủ a I t r ê n A B \to H l à t r u n g đ ể m c ủ a đ o ạ n t h ẳ n g A B \to H A = H B = \frac{\sqrt{10}}{2}$

$∆_{A I H} c ó : I H^{2} = I A^{2} - A H^{2} = R^{2} - A H^{2} = 5 - \frac{10}{4} = \frac{5}{2} \to I H = \frac{\sqrt{10}}{2} Đ ư ờ n g t h ẳ n g d đ i q u a M (6, 2) c ó d ạ n g p (x - 6) + q (y - 2) = 0, |p| + |q| # 0 \Leftrightarrow p x + q y - 6 p - 2 q = 0 d t h ỏ a m ã n y ê u c ầ u b à i t o á n \to d (I, d) = I H = \frac{\sqrt{10}}{2} \Leftrightarrow \frac{|p + 2 q - 6 p - 2 q|}{\sqrt{p^{2} + q^{2}}} = \frac{\sqrt{10}}{2} \Leftrightarrow 2 |- 5 p| = \sqrt{10 (p^{2} + q^{2})} \Leftrightarrow 9 p^{2} = q^{2} \Leftrightarrow 3 p = \pm q V ớ i 3 p = - q, c h ọ n p = 1, q = - 3, t a c ó d 1 : x - 3 y = 0 V ớ i 3 p = q . c h ọ n p = 1, q = 3, t a c ó d 2 : x + 3 y - 12 = 0$

Câu hỏi:

Công thức cấu tạo tổng quát của anđehit hai chức là A RCHO2 B CHO2 C CmH2mO2 m>=1 D CnH2nCHO2 n>=1

Câu trả lời của bạn: 16:12 24/07/2021

A. $R {(C H O)}_{2}$

Câu hỏi:

$12 x^{2} + 6 x y + 3 y^{2} = 28 (x + y) A i g i ú p m i k l u n m i k v o t e 5 *$

Câu trả lời của bạn: 16:07 24/07/2021

hd

$12 x^{2} + 6 x y + 3 y^{2} = 28 (x + y) \to 9 x^{2} + 3 x^{2} + 6 x y + 3 y^{2} = 28 (x + y) \to 9 x^{2} + 3 {(x + y)}^{2} = 28 (x + y) \to 9 x^{2} = - 3 {(x + y)}^{2} + 28 (x + y)$

$\to 9 x^{2} = \frac{14^{2}}{3} - 3 {[(x + y) - \frac{14}{3}]}^{2} \leq \frac{196}{3} \to x^{2} \leq 7 \to x \in \{0, \pm 1 . \pm 2\} N ế u x = 0 t h ì y = 0 N ế u x = 1 t h ì y = 8 N ế u x = - 1 t h ì y = 10 N ế u x = \pm 2 t h ì y \notin Z$

Câu hỏi:

In the blank with the correct form of the word in brackets. 1)Ecotourism can be ......... to local people.(benefit) 2)Mass tourism has contributed to the ...... of the environment.( destroy) 3)People often use the natural world as inspiration to design and invent new.......(produce) 4)Yoga increases endurance,........and flexibility.(strong)

Câu trả lời của bạn: 15:33 24/07/2021

1. beneficial

2. destruction

3. products

4. strength

Câu hỏi:

Exercise 4: Complete the sentences with the time expressions from the list. at the moment / always / yesterday / last night / every week / last summer/ 1. We watched a really good film at the cinema....... 2. He is upset because he failed his driving test....... 3. She.......brushes her teeth before she goes to bed at night. 4. I am working.......I can't come with you. 5. My mother does the shopping....... ( có ai biết làm không ạ?Giúp mình với!)(๑•﹏•) 6. I went to a beautiful exotic island.......The weather was very hot.

Câu trả lời của bạn: 15:30 24/07/2021

1. last night

2. yesterday

3. always

4. at the moment

5. every week

6. last summer

Câu hỏi:

t.
A. wears B. is wearing C. will wear D. will be wearing
25. The farmer rides the buffalo-........................ carts loaded full of rice homeI. Choose the word that has the word prnounced differently from the others:
1. A. honest B. house C. hour D. honor
2. A. suggestion B. action C. creation D. invention
3. A. post B. though C. how D. clothes
4. A. beard B. bird C. learn D. turn
5. A. false B. laugh C. glass D. after
6. A. camp B. lamp C. cupboard D. apart
7. A. genetics B. generate C. kennel D. gentle
8. A. cleanse B. please C. treat D. retreat
9. A. mechanic B. machinery C. chemist D. cholera
10. A. thank B. band C. complain D. insert

II. Find the word which has different stress pattern from the others.
1. A. national B. cultural C. popular D. musician
2. A. program B. prefer C. promise D. practice
3. A. doctor B. father C. picture D. prefer
4. A. pollution B. visit C. listen D. open
5. A. depend B. advise C. affect D. listen
6. A. affect B. father C. teacher D. picture
7. A. prefer B. enjoy C. mother D. affect
8. A. affect B. happen C. pollution D. fancy
9. A. pollution B. picture C. village D. factory
10. A. illustrate B. believe C. affect D. village
11. A. artistic B. historic C. dramatic D. scientific
12. A. medical B. national C. chemical D. historical
13. A. athletic B. dramatic C. scientific D. heroic
14. A. medical B. hospital C. politic D. electric
15. A. chemical B. physical C. environmental D. medical
III. Choose A, B, C, D for each gap in the following sentences.
1.Air......................, together with littering, is causing many problems in our cities today.
A. pollute B. pollution C. polluting D. polluted
2. The road in front of my office is always .................... when it rains heavily.
A. to flood B. flooding C. flood D. flooded
3. Singapore is famous for its .................... and green trees.
A. cleanliness B. cleanly C. cleaning D. clean
4. In some English speaking countries, turkey and pudding are ............... food at Christmas.
A. national B. historical C. traditional D. possible
5. The USA has a population of 304 million, and it’s the third ............. country in the world.
A. smallest B. largest C. narrowest D. highest
6. The roof of the building .......................... in a storm a few days ago.
A. damaged B. was damaged
C. has damaged D. has been damaged
7. A severe tropical ...................... is called a typhoon.
A. drought B. rain C. flood D. storm
8. As soon as the floodwater ...................... down, people ........................ their houses.
A. went - cleaned B. had gone – cleaned
C. went - had cleaned D. had gone – had cleaned
9. If I were you, I ..................... do something to prevent him from littering.
A. would B. did C. will D. do
10. Earth .................. by the gravity of the Sun and orbits around it.
A. holds B. is held C. is holding D. held

Câu trả lời của bạn: 15:27 24/07/2021

1) 1. B

2. A

3. C

4. A

5. A

6. C

7. A

3) 1. B

2. B

3. A

4. C

5. C

6. B

7. D

8. B

9. A

10. B

Câu hỏi:

VI. Find one word or phrase(A, B, C or D) that must be changed in order for the sentence to be correct.

36. It was disappoiting that almost of the guests left the wedding too early.

A B C D

37. He has a great deal of books most of which are on science and technology.

A B C D

38. John had made several spelling mistake in his assignment so he didn’t get good marks.

A B C D

39. In the early days of the devolopment, cars used a large number of fuel, and now cars are more economical. A B C D

40. A number of the participants in the survey was 250 students for Oxford University.

A B C D

41. He had smoked so a lot of cigarettes that he died of cancer.

A B C D

42. There is only a few food for dinner. I think you should buy some more to eat.

A B C D

43. Although Mary has been inViet nam for 10 months, she knows a little Vietnamese.

A B C D

44. There is too many bad news on TV tonight.

A B C D

45. My friends can’t buy these jackets because they cost too many.

A B C D

46. If either of you take a vacation now, we will not be able to finish the work.

A B C D

47. Because they had spent too many time considering the new contract, the students lost the

A B

opportunities to lease the apartment.

C D

48. Some the plants in this store require very little care, but this one needs much more

A B C D

sunlight than the others.

49. The company has so a little money that it can hardly operate any more.

A B C D

50. Athough the weather was not perfect a bunch of people turned out for the annual parade.

A B C

Câu trả lời của bạn: 09:58 22/07/2021

36. almost of -> most of

37. a great deal of-> a great number of

38. mistake

39. a great number of -> a great deal of

40. A-> The

41. a lot of

42. only a few-> only a few of

43. a little -> little

44. many -> much

45. many -> much

46. take -> takes

47. too many -> too much

49. a little -> little

Câu hỏi:

Giup em bai 1 a, em cam on nhiu lam ( em hua se VOTE 5 SAO )

Câu trả lời của bạn: 09:20 22/07/2021

hd

Câu hỏi:

Giup em bai 7 a, em cam on nhiu lam ( em hua se VOTE 5 SAO ) ~

Câu trả lời của bạn: 08:56 22/07/2021

- Có AB // CD (gt)

=> $\hat{I_{2}} = \hat{C_{2}}$ (sole trong)

mà $\hat{C_{2}} = \hat{C_{1}}$ (CI là phân giác góc C - gt)

=> $\hat{I_{2}} = \hat{C_{1}}$

=> $∆_{I B C}$ cân tại B

=> IB = BC (1)

- AB // CD (gt)

=> $\hat{I_{1}} = \hat{D_{2}}$

mà $\hat{D 1} = \hat{D 2}$ (DI là phân giác góc D - gt)

=> $\hat{I_{1}} = \hat{D_{1}}$

=> $∆_{A I D}$ cân tại A

=> IA = AD (2)

Từ (1) và (2)

=> IA + IB = BC + AD

=> AB = BC + AD

=> AB bằng tổng hai cạnh bên (đpcm)

Câu hỏi:

Choose A, B, C or D to show the sentence closest in meaning to the original sentences.

Question 38. This is the best chocolate cake I have ever eaten.

A. The last chocolate cake I ate was better than this.

B. I have ever eaten the best chocolate cake but not this.

C. It’s the first time I’ve eaten a good chocolate cake.

D. I have never eaten a better chocolate cake than this.

Question 39. My future house will have 5 rooms.

A. There will be 5 rooms in my future house.

B. 5 rooms will have my house.

C. There my house will be 5 rooms.

D. My house will be 5 rooms.

Question 40. Having a robot is so convenient that many people buy one.

A. Many people buy a robot and it’s convenient.

B. Many people buy a robot although it’s convenient.

C. Many people buy a robot because it’s convenient.

D. Many people buy a robot but it’s convenient.

Câu trả lời của bạn: 08:33 22/07/2021

38. D

39. A

40. C

Câu hỏi:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

What I enjoy most on TV is the news. Every day after dinner, I usually __(11)__ the 7 p.m

daily news with my father. You can see actual events as they happen in our country and in the whole world. You __(12)__ see famous people being interviewed and giving their opinions on the world events. This programme may also include additional material such as sports coverage, weather forecast, traffic reports __(13)__ other material. I enjoy live programmes as well. There is not only __(14)__ news, but also interesting stories about ordinary people. Life would be boring without all the __(15)__ and entertainment you get on TV every day.

Question 11. A. read B. watch C. look D. find

Question 12. A. need B. should C. must D. can

Question 13. A. but B. and C. so D. because

Question 14. A. a lot B. plenty of C. few D. many

Question 15. A. events B. situation C. knowledge D. information

Câu trả lời của bạn: 08:30 22/07/2021

11. B

12. D

13. B

14. B

15. A

Nguyễn Tiến Đạt