题目内容
【题目】—How are you getting along with your German, Kate?
—Oh, Mr.Black, I’m so tired of it.Maybe I should drop out _____ it kills me.
A.when B.after C.while D.before
【答案】D
【解析】Drop out,退学,退出。根据句意,从句它烦死我(“it kills me”),与主句我可能该退学(“Maybe I should drop out”)构成“在……之前”的时间关系,选从属连词before。
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