题目内容
Yesterday morning I was just leaving_______ the telephone rang.
A. when B. while C. because D. since
【答案】
A
【解析】
试题分析:句意:昨天早上我正要离开时电话铃响了。When当…时;while当……时; because 因为;since自从。表示某事正在进行时发生了另一件事,常用when,所以选A。
考点:考查连词。
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