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_________ many times, he finally understood it.
A. Having told B. Having been told C. Told D. Telling
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A tiger is ___animal that feeds on animals.
A. an eating-meat B. a meat-eating C. an eat-meat D. a meat-eaten
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A survey _______ in 2002 by the Computer Security Institute, a private organization in the USA, showed that 90 percent of the 503 biggest companies and government departments questioned _______ their security systems _______ into in the previous year.
A. conducted ; had ; broke B. conducted; had had ; broken
C. was conducted ; had had ; broken D. to be conducted; had ; broke
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as it was at such a time, his work attracted much attention.
A. Being published B. Publishing C. Published D. To be published
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With ticket prices rising, TV over as the typical way of watching a game for the young and old.
A. has taken B. had taken C. was taken D. is taken
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— We didn't find Smith attending the lecture.
— No one _____ him about ______ a lecture the following day.
A. told; there to be B. had told, there to be
C. told; there was D. had told, there being
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—I wish I had succeeded in the completion.
—Yeah. I know. But hard?
A. did you work B. do you work C. had you worked D. have you worked
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--- I’m sure Andrew will win the first prize in the final.
--- I think so. He ___________ for it for months.
A. is preparing B. was preparing
C. had been preparing D. has been preparing
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The policeman’s attention was suddenly caught by a small box which ______ placed under the Minister’s car.
A. has been B. was being C. had been D. would be
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---Did you learn to drive 10 years ago?
---Yeah, I am sure he _________ for at least 10 years.
A. had driven B. has been driven C. has been driving D. has driven
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