成人英语三级

11. The chemistry class ______ for five minutes when we hurried there.

A. had been on

B. was on

C. has been on

D. would be on

12. By the time Juan gets home, his aunt _______.

A. will leave

B. leaves

C. will have left

D. is leaving

13. He has ______ the army for ten years and is now an officer.

A. gone into

B. joined in

C. been in

D. come into

14. You’ve already missed too many classes this term.. You _____ two classes just last week.

A. missed

B. would miss

C. had missed

D. have missed

15. One of the guards ______ when the general came in, which made him very angry.

A. has slept

B. were sleeping

C. slept

D. was sleeping

参考答案：11-15 ACCAD

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