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5.She__________ to her parents since she left home last month.(  )
A.hasn't writtenB.didn't writeC.doesn't writeD.wasn't writing

分析 自从她上个月离开家,她就没有给父母写过信.

解答 答案为A.根据"since she left home last month"可知not write这个动作从过去延续至现在,此题用现在完成时.所以答案为A.

点评 考查现在完成时.现在完成时有一些固定的时间状语,如for,since,up to now,so far等.

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