V. TENSES

1.                .................your brother ( play) .................tennis when you ( phone) .................him?

2.                At 8 o’clock yesterday he ( have ) ................ breakfast.

3.                He (appear) .................while I ( draw) .................my picture.

4.                I ( have ) ................breakfast at  6 a.m this morning.

5.                I (cook).................in the kitchen when he came in.

6.                Joe ( watch ) ................a  detective movie at 8 o’clock last night.

7.                What ................ you ( do ) ................ when I ( phone ) ................ you ?

8.                What.................your father (do) .................at ten-thirty last night?

9.                While I (walk) ................around the park, I (see) ................Mr. Lam 

VIII. Combine the two sentences with the given word(s) in brackets

1.             She didn’t eat much. She was hungry     (but)

…………………………………………………………………………………………………..

2.             He got wet. He forgot his umbrella (therefore)  

…………………………………………………………………………………………………..              

3.             We are saving money. We want to buy a new house (so)

…………………………………………………………………………………………………..              

4.             It got dark. They continue to work         (but)

…………………………………………………………………………………………………..

5.             She wears glasses. She wants to see better (because)     

…………………………………………………………………………………………………..              

6.             We didn’t enjoy our holiday. The weather was bad. (so)

…………………………………………………………………………………………………..

7.             We don’t use the car very often. We have decided to sell it. (because)

…………………………………………………………………………………………………..

8.             The house was empty. We left a note on the door. (so)

…………………………………………………………………………………………………..

9.             The train arrived. Lan was having lunch. (while)

…………………………………………………………………………………………………..

10.         I learned a lot about wildlife. I visited Cue Phuong National Park yesterday. (after)

…………………………………………………………………………………………………..

IV. POSSESSIVE PRONOUNS

1. She is helpful, so everyone likes __________.

A. her                          B. hers                         C. them                        D. she

2. Mai has a new pair of shoes. They are __________.

A. hers                         B. she              C. hers                         D. yours

3. I forgot to bring __________ compass.

A. my                          B. I                              C. me                           D. mine

4. He does __________ homework at 8 p.m. everyday.

A. me                           B. him                          C. he                            D. His

5. My children are playing in __________ room.

A. them                        B. they                         C. their                         D. theirs

Giúp mình với ạ có giải thích càng tốt ạ

CHÂU NAM CỰC THÔNG GIÁP VỚI ĐẠI DƯƠNG NÀO SAU ĐÂY?

A.THÁI BÌNH DƯƠNG 

B.BẮC BĂNG DƯƠNG 

C.DẠI TÂY DƯƠNG 

D.ẤN ĐỘ DƯƠNG 

Choose the best answer to complete these following sentences.

1.         She is very tired; __________,     she has to finish her homework.

A. therefore                 B. so                            C. and                          D. however

2.         He was tired, __________ he took a rest before continuing the work.

A. so                B. and                          C. but                           D. if

3.         He is going to the post office ( bưu điện)__________ he wants to send a letter.

A. because                   B. but                           C. and                          D. moreover

4.         They learn English __________ they intend( dự định) to go abroad.

A. and                          B. or                            C. so                            D. because

5.         His hobbies are playing soccer __________ collecting stamps.

A. and                          B. but                           C. however                  D. although

6.         I'd love to play volleyball __________ I must complete my homework.

A. since                       B. moreover                 C. but                           D. and

7.         It is a beautiful place. ______________, the people are not very friendly.

A. Therefore                B. Although     C. Because                   D. However

8.         I want to buy some food ……………….I am going to the market.

A. therefore                 B. so                            C. and                          D. however

9.         She‘s working late  next Friday; ...................., she can’t come to the party.

A. therefore                 B. so                            C. and                          D. however

10.     I always take a bath _______________ I go to bed.

A. before                     B. while                       C. during                      D. although

11.     Will you wait here _______________ I am ready?

A. as long as                B. because                   C. until                         D. so

12.     I was not at home _______________ he came to see me.

A. since                       B. for                           C. when                       D. so that

13.     Do not disturb me _______________ I am busy with my work.

A. however                  B. while                       C. at the moment         D. but

14.     _______________ she finished that project, she started working on the next.

A. Still                         B. As soon as               C. Or                            D. And

Giúp mình với ạ có giải thích càng tốt cảm ơn

Câu đố hóa học (trong đời sống): Chuẩn bị một ly nước (có nước) sau đó bỏ một CÂY ĐINH (MỚI KHÔNG GỈ) vào ly nước đó, đợi vài tuần cây đinh không gỉ nguyên nhân từ đâu? (đơn giản không dài dòng)                                                             Chỉ 3 từ duy nhất không quá 3 từ

cho tam giác ABC có ab<ac vẽ tia phân giác ad góc bac.Trên cạnh AC lấy điểm E sao cho AE = AB gọi k là giao điểm của ab và ed. i là trung điểm của kc. CMR a BD=BE, tam gác AKC cân

cho tam giác ABC vuông tại A , đường cao AH ( He BC) 

a) giải thích vì sao tam giác HAB~ tam giác HCA 

b) cho BH=4cm . CH=9cm.Tính độ dài đường cao AH