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2018年成人英语三级考试语法专项练习(二十三)
1. 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
答案：A
2. By the time Juan gets home, his aunt _______.
A. will leave B. leaves C. will have left D. is leaving
答案：C
3. He has ______ the army for ten years and is now an officer.
A. gone into B. joined in C. been in D. come into
答案：C
4. 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
答案：A
5. 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
答案：D
6. They will go home for winter vacation as soon as they ______ their exams.
A. have finished B. finish C. will finish D. will have finished
答案：B
7. About the sixth century A.D. when they few Europeans could read, the Chinese _____ paper.
A. invented B. had invented C. have invented D. had been invented
答案：B
8. I fell and hurt myself while I ______ tennis.
A. was playing B. am playing C. play D. played
答案：A
9. I _______ on the door for ten minutes now without an answer.
A. was knocking B. an knocking C. knocking D. have been knocking
答案：D
10. When you _____ this over with herm you should not see her any more.
A. talk B. talked C. will talk D. talking
答案：B
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