Bài 2: Một vật có trọng lượng P = 50N được treo vào tường bằng các sợi dây mảnh như hình vẽ.

a)     Xác định độ lớn lực căng dây AB

b)     Xác định độ lớn lực căng dây AC

$\sqrt{9}=$

đặt câu với mỗi quan hệ từ, cặp từ quan hệđặt câu với mỗi quan hệ từ, cặp từ quan hệ sau : a) Hễ....thì b) bởi.....nên c) tuy.....nhưng d) của e) mà g) bằng h) với sau :           a) Hễ....thì         b) bởi.....nên         c)   tuy.....nhưng        d) của         e) mà          g) bằng       h) với

Tìm min của $\frac{x+1}{x^2}$

cần gấp giúp mk vs

Exercise 3: Circle the letter A, B, C, or D to indicate the correct answer.

1. Our parents' wedding anniversary _______ by us.

A. is celebrate                B. is be celebrated                      C. is celebrated               D. are celebrated

2. I _______ to the game centre by my aunt.

A. am taken                    B. am been                                    C. am gone                     D. am come

3. My grandpa is 60 now, and I'm 14. We couldn't talk to each other peacefully. I think we have a _______.

A. close-knit family      B. generation gap                       C. struggle                      D. sibling rivalry

4. When a family has one father, one mother, one or two children. A(n) __________ family will be formed.

A. adoptive                     B. foster                                         C. dual career               D. nuclear

5. Having close relationships with family members is important for everyone because they provide __________, love, and connection.

A. struggle                      B. get-together                            C. support                       D. motherhood

6. We don’t see each other very often, but family gatherings ________ once a week so that we can gather and talk to each other.

A. are held                      B. is hold                                        C. is held                         D. are hold

7. My sister is talkative and doesn’t like to wait for anything. But I’m very shy and patient. We are as different as_______.

A. chicken and cheese B. chalk and cheese                   C. carrot and stick               D. board and chalk

8. I _________ my grandma. We both have blue eyes and blonde hair.

A. take after                   B. take care                                   C. take before               D. take behind

9. Sue and Jame are good chilren. They ________ by their well-educated parents.

A. bring up                      B. bring down                              C. are brought up               D. are brought down

10. Although my brother and I have different hobbies and habits, we still _______ each other.

A. get along to               B. get along well                         C. get long well with               D. get along with

cần gấp giúp vói a

Exercsie 3: Complete the sentences using the verb in the brackets.

Question 1: I'm getting used to_____________ (LISTEN) to loud noise now. I found it really stressful when I first moved in.

Question 2: Tiffany used to _____________ (EAT) a lot of fast food, but now she prefers fresh vegetables and fruits.

Question 3: I'm a teacher so I'm used to ____________ (SPEAK)in public.

Question 4: He wasn't used to  __________ (WALK) so much and his legs hurt after the hike.

Question 5: When we were children, we used to _____________ (GO) swimming very often.

Question 6: He is used to  ______ (LIVE) alone. He doesn’t feel lonely at all.

Question 7: Jenifer has tried ___________ (MEET) me recently but I don't like her.

Question 8: She finally decided ____________ (BUY) a blouser for her mom.

Question 9: My roommate admitted ______________(STEAL) my pink shirt.

Question 10: Our Chemistry teacher forces us _____________ (DO) a lot of homework.

Question 11: I’m not in a hurry . I don’t mind __________ (WAIT).

Question 12: Charlie was very angry and refused __________ (SPEAK) to me.

Question 13: I really need your advice. I don’t know what _______ (DO) now.

Question 14: John tried to persuade me _____________(COME) to the music festival with him.

Question 15: Do you really expect me ___________ you (BELIEVE)?