18．A study shows that students living in non-smoking dorms are less likely to 　　　　the habit of smoking.

A. make up　　　 　　　 B. pick up　　　　 C. draw up　　　　 　　 D. turn up

17.　 Much to his surprise，he invited only twenty friends to the dinner，but　　　 came．

　　 A．twice as many as　 B．as many as twice　 C．twice as many　　 D．twice more than

16．Faced with trouble or difficulty，a person takes　　　　 　help that is available．

　 　　 A．whatever　　　 　 B．whenever　　 　　 C．wherever 　　 　D．however

15．Once education is made free，many children who have dropped out of school 　　　　　.

　 　　 A．will come back　 B．came back　　 C．have come back　 D．had come back

14．_____ for more than three months, but he did his best to catch up with his classmates.

　 A. Being ill　　 B. Having been ill　　 C. Though he was ill　 D. He was ill

13．　　　 　the world economy is in difficulty,　　　　 we can see, the people of China are full of hope．

　 A．As；不填　　 　 B．Because；which　 C．Though；as　　 D．With；不填

12．I go　　　 to the stadium when there’s a game．But usually I watch it on TV．

　 　　 A．typically　　 　　　 B．anxiously　　 　　　 C．frequently 　 D．occasionally

11．Mr. and Mrs Scott prefer a trip in a small town to 　　　　in so large a city as New York.

　　　 A．this　　 　　 B．one　 　　 C．it 　　 D．that

10．When I lived with my roommates in the university, we　　　　 　often talk into the night

　　　 A．might　　 　　 B．could　　 　　　 C．should 　 D．would

9．一Is there any possible way to help them get rid of such a bad habit?

　 一To tell the truth, it’s very hard．But we　　　　　 on this problem．

　 　　 A．worked　　 　 B．had worked　 　　 C．are working 　　　 D．had been working