Mother was busy washing dishes Father was watching TV．A．until B．if C．since D．while 题目和参考答案——青夏教育精英家教网—

题目内容

Mother was busy washing dishes ________________ Father was watching TV．

A．until B．if C．since D．while

【解析】

试题分析：考查连词。A．until直到；B．if如果；C．since自从；D．while然而，表对比关系。句意：母亲在忙于洗碗，而父亲在看电视。故D正确。

考点：考查连词

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