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【題目】I thought she was famous,but none of my friends have ________ heard of her.
A. even B. ever
C. just D. never
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【題目】Many students believe that the choice of their courses and universities should ______ their own interest.
A. be based on B. base on
C. be basing on D. base at
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【題目】 ______ scientists have learned a lot about the universe, there is much we still don't know.
A. Once B. Since
C. Though D. Unless
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【題目】Personally,I think modern education is ______sitting at a desk and looking at the blackboard.
A. more than B. no more than
C. less than D. no less than
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【題目】The reason why he was absent from the meeting was he was delayed by the accident.
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【題目】 _____the damage is done, it will take many years for the farmland to recover.
A. Until B. Unless
C. Once D. Although
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【題目】Do you believe scientists will ______ a cure for cancer in the near future?
A. come up B. come up with
C. come about D. bring about
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【題目】 If you miss this chance, it may be years ____ you get another one.
A. as B. before
C. since D. after
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