20. He must _____ his sister with her math.

A. try help　 　　B. trying to help　 C. trys to help　　 D. try to help

19. I love junk food very much, but I eat _____ only once a week.　　　

A. its　 　　　 　　B. it　 　　　　　　 C. them　 　　　 D. they

18. Although he is very old, ________he works very hard.

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

17. Is her lifestyle _______ yours or different?

A. the same　　　 B. the same as　　 C. same as　　 　　 D. the same to

16. 　　　　eye-exercise is good for our eyes.

A. Do　 　　　 　 　　B. Doing　　 　　 　　 C. Does 　　　 D. Did

15. We should keep our classroom ______.

　　 　　 A. cleaned　　 　　 B. clean　　　　　　 C. cleaning　　 D. to clean

14. ---English is 　　　　difficult for me. I can’t learn it well.

---Don’t give up. Nothing is difficult if you work hard.

A. seldom　　　 　 B. never　　 　　　　 C. always　　　　　 D. hardly ever

13. Who is the 　　　　student in your class?

A. better　　 　　 B. healthy　　 C. healthiest　　　 D. good

12. They eat many 　　　　but little 　　　_.

　　 　　 A. vegetable; meat　　　　　　　　 B. vegetables; meats　　

C. vegetable; meats　　　　　　　　　　 D. vegetables; meat

11. ---　　　 　do you shop? ---I shop every week.

A. How many　 　 　　B. How much　 　　 C. How often　 D. How far