5. Good health r_________ enough exercise and a balanced (均衡的) diet.

4. His uncle is an _________ (专家) in heart disease.

3. The medicine had a good e_________ on her and soon she felt better.

2. If you eat too much every day, you will put on w_________.　　　　　　

1. The food you eat will make a difference if you want to keep _______ (健康的).

20. - What do you think of this kind of TV set, which ______ in Shanghai?

- Well, I don’t care about such things.

A. was made 　　　　 B. is made　　　　　　 C. has been made 　　　　 D. had been made

19. Don’t bother to look for my dictionary - it ______ some day.

A. turns up 　　　　　　　　 B. has turned up

C. will turn up 　　　　　　 D. is going to turn up

18. - Where do you think ______ he ______ the computer?

- Sorry. I have no idea.

A. has; bought 　　　　　　 B. 不填; bought

C. did; buy 　　　　　　　　 D. 不填; buys

17. I know Mr. Brown; we ______ to each other at an international conference.

A. are introduced 　　　　 B. are been introduced

C. were introduced 　　　 D. had been introduced

16. - Alice came back home the day before yesterday.

- Really? Where ______?

A. has she been 　　　　　 B. had she been

C. has she gone 　　　　　 D. had she gone