21.　 ----I’ve got to go now.

---Must you? I 　　　　　you could stay for dinner with us.

A. think　　 B. thought　 C. have thought　 D. am thinking

20.　 She stared at the painting, wondering where she 　　　it.

A. saw　 B. has seen　 C. sees　 D. had seen

19.　 -What do you think of the movie?

-It’s fantastic. The only pity is that I 　　the beginning of it.

A. missed　 　B. had missed　 　C. miss D. would miss

18.　 Over the past decades, sea ice 　　in the Arctic as a result of global warming.

A. had decreased 　 B. decreased　 　 C. has been decreasing 　D. is decreasing

17.　 During the period of recent terrorist activities, people _______ not to touch any unattended bag.

A. had always been warned　　　　　　　　　　 　B. were always being warned

C. are always warning　　　　　　　　　　　　　　 　D. always warned

16.　 Mary went to the box office at lunch time, but all the tickets ______ out.

A. would sell　 B. had sold　　 C. have sold　　 D. was selling

15.　 This is the first time we______ a film in the cinema together as a family.

A. see 　B. had seen　　 C. saw　　 D. have seen

14.　 My parents _____ in Hong Kong. They were born there and have never lived anywhere else.

A. live　　　　 B. lived　　　　 C. were living　　　　 D. will live

13.　 I was out of town at the time, so I don’t know exactly how it _______.

A. was happening　　　　 B. happened　　　 C. happens　　　　 D. has happened

12.　 Progress ______ so far very good and we sure that the work will be finished on time. 学

A. was　　　　 B. had been　　　 C. has been　　 D. will be高.考.资.源.网