10.(　 )It’s better _______try too hard ____to sleep, and _______not to keep looking at the time.

A. don’t , to get, certainly　　　　 B. not to, to get, certainly

C. not, getting, certain　　　　　 D. not to, getting, certainly

9.(　 )A asleep researcher has a simple way of _________it.

A. look at　　　　 B. looking out　　　　　 C. looking at　　　　 D. to look at

8.(　 )The ________you exercise, the _______you’ll become.

A. many, healthier　　　　　 B. more, more healthily　

C. much, healthily　　　　　 D. more, healthier

7.(　 )Perhaps Wang Liang _______out with them a little ________.

A. hung, much too　　　　　　 B. hangs, too many　　

C. hangs, too much　　　　　　 D. hangs, too

6.(　 )On ______hand, he doesn’t eat many snakes, either.

A. other　　　　　 B. another　　　　　　 C. the other　　　　 D. others

5.(　 )_______be healthy, teenagers need to get enough sleep.

A. so that　　　　 B. in order that　　　　 C. in order to　　　 D. so as

4.(　 )What does one girl ask if she is _______young ________do?

A. to, too　　　　 B. isn’t , enough to　　　 C. too, to　　　　 D. so, that

3.(　 )Exercising _______teenagers __________healthy.

A. help, to stay　　　　　　　 B. helps, keep　　

C. helps, to keep　　　　　　　 D. help, stay

2.(　 )Do you think it’s important ___________for teenagers?

A. exercising　　　　　 B. exercise　　　　 C. to exercise　　 D. exercised

1.(　 ) I think ___________time with friends is better than __________time alone.

A. spending, to spend　　　　　 B. to spend, to spend　

C. spend, spending　　　　　　 D. spend, spend