题目内容

She had just finished her homework           her mother asked her to practice playing the piano yesterday.
A.whenB.whileC.afterD.since
A

试题分析:考查连词:句意:昨天她刚刚做完作业这时妈妈叫她弹钢琴。A. when当…时候,(表示时间点),这时,B. while当…时候,,虽然,然而,C. after在…后面,D. since自从,when可以和过去完成时的句子连用,had done…when…“刚刚做完了…这时…”,选A。
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