题目内容
【题目】After __________ series of unsuccessful attempts, he has finally passed __________ driving test.
A. /; the B. a; the
C. the; a D. /; a
【答案】B
【解析】句意:经过几次失败的尝试之后,他终于通过了驾驶测试。a series of一系列,一连串;driving test是双方都知道的事情,用定冠词。
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