31.　 The students took the trouble ________ all the _______ leaves away.

A. to clean, fallen　 B. to clean, falling　 C. cleaning, falling　 D. cleaning, fallen

30.　 Dealing with naughty children ________ abundant patience.

A. calls on　　　 B. calls for　　　　　 C. calls off　　　　 D. calls up

29.　 ---I’m sorry I’m too busy.

　 --- Don’t worry. You can fetch it if __________ now.

　 A. you are inconvenient　　 B. you feel inconvenient

　 C. it’s inconvenient to you　 D. it’s inconvenient with you

28.　 ---How was the flight?

---To tell you the truth, _______ I flew on the plane I was really nervous.

　 A. first time　　　 B. the first time　　 C. for first time　　 D. for the first time

27.　 Mr. Wood was lucky enough to get on the train before it _______.

A. pulled on　　　 B pulled down　　 C. pulled in　　　　 D. pulled out

26.　 Only then _________ what a dangerous situation she had been in.

A. she did realize　 B. she realized　　 C. did she realize　 D. realized she

25.　 Some westerners who have never been to China make the _______ that poverty exists all over the poor country.

A. suggestion　　　 B. decision　　　　 C. assumption　　 D. application

24.　 Jack is said _________ for a fortnight since he went to bed.

A. to sleep　　　　 B. to be sleeping　　 C. to be slept　　 D. to have been sleeping

23.　 If you think there ______ huge quantities of oil for the use of drivers, you are wrong.

A. is　　　　　　 B. are　　　　　　 C. has　　　 　　　D. have

22.　 It ______ me that I should treat myself a dinner after such an exhausting examination.

A. happened　　　 B. struck　　　　 C. occurred　　　 D. took