1. Choose the best answers to complete the sentences.

 (Chọn các câu trả lời đúng nhất để hoàn thành các câu.)

1. The door and the window are open. I think someone________ into our house!

 A. breaks          B. broke             C. has broken              D. will break

2. Jane________  Chinese, but she quitted because it was too difficult.

A. studies           B. studied          C. has studied              D. will study

3. Dave ________ Chinese for six years now. He likes it.

A. studies           B. studied          C. has studied              D. will study

4. We have worked here ________ 2002

A. for                 B. since              C. In                            D. to

5. The company ________ a new kind of smartphone. It looks fantastic!

A. just introduces

C. has just introduced

B. just introduced

D. will just introduce

6. Hoa is not coming to class today. She ________  back to her hometown

A. goes              B. go                  C. has gone                  D. will go

7. She has had this smartphone________  10 years.

A. for                 B. since              C. from                        D. in

8. This is a delicious cake, but we have________  had a big dinner and feel very full.

A. only              B. just                C. since                        D. for

2. Complete the sentences using the correct forms of the verbs in brackets.

(Hoàn thành các câu bằng cách sử dụng các dạng đúng của động từ trong ngoặc.)

1.Avoid (charge) ________the device for too long. It may overheat and break down.

2.It's very convenient(look) ________ up a new word on a smartphone when learning English.

3.Computers allow us (store) ________ a lot of information.

4.Robots help us (do) ________ difficult or dangerous tasks.

5.(Carry) ________ a laptop around is easy because it is often very light and small.

6.I decided (give) ________ my old laptop to my younger brother.

7.Some people hate (use) ________ technology.

8.My friends enjoy (learn) ________ English on their smart devices.

3. There is a mistake in each sentence. Find and correct it.

(Có một lỗi sai trong mỗi câu. Tìm và sửa nó.)

1. We lived here since 1990. We all enjoy living in this neighbourhood.

2. Have you finished did your homework? 

3. They want trying the new device because it is very useful. 

4. I have used this smartphone during 20 years. It is old now. 

5. We have recent bought a new laptop. 

6. Design a new invention is not easy. 

7. I have tried everything but it is really difficult for remove this stain. 

8. Everyone has met at the meeting yesterday and we had a great discussion.