Câu 2: Vấn đề hay hiện tượng mà người điều tra quan tâm tìm hiểu gọi là:

A. Tần số;

C. Giá trị;

B. Giá trị trung bình;

D. Dấu hiệu.

Bài 4: Điền giới từ thích hợp

1. Lan'll have a party ...................... Friday evening.

2. Would you like to come .......... my house ............lunch?

3. She takes care ............. her family.

4. She works .........a local supermarket.

5. My mother works...............the field............. my father.

6. Does your father work ............. . Hanoi?

7. David is good ................... . Math.

8. What do you do ............. your free time?

9. Are you interested ............. . sports?.

10. There's a good film ............. . ......... the moment.

11. Thanks .......... . your letter.

12. I'll see my mom and dad ................ . their farm.

13. We have to work hard .......... home and................ school

14. We'll visit her .......... Christmas.

15. Are you tired ............. . watching TV?

16. She often brings them ............... school.

17. He works .......... a factory.

18. We always go to Ha Long Bay .......... vacation.

19. Tell me more .......... . your family.

20. Can you send me a photo .......... . your family?

Bài 3: Chia động từ cho đúng

1. In all the world, there (be) __________ only 14 mountains that (reach) __________above 8,000 meters.

2. He sometimes (come) __________ to see his parents.

3. When I (come) __________, she (leave) __________for Dalat ten minutes ago.

4. My grandfather never (fly) __________ in an airplane, and he has no intention of ever doing so.

5. We just (decide) __________ that we (undertake) ____________ the job.

6. He told me that he (take) __________ a trip to California the following week.

7. I knew that this road (be) __________ too narrow.

8. Right now I (attend) __________ class. Yesterday at this time I (attend) __________class.

9. Tomorrow I'm going to leave for home. When I (arrive) __________at the airport, Mary (wait) __________ for me.

10. Margaret was born in 1950. By last year, she (live) __________on this earth for 55 years

\(B\)

\(B\)