题目内容
4.Mrs.Wang with her daughterwas(be) having breakfast when someone knocked at the door.分析 当有人敲门的时候王太太正在和她的女儿一起吃早餐.
解答 答案:was.
首先根据when引导的时间状语从句用了一般过去时,判断主句中的动作在过去某个时刻,即"有人敲门时"正在进行着,且动作在一段时间内持续进行,所以用过去进行时,过去进行时的构成是:主语+was/were+动词的现在分词,另外注意当主语后面有with短语时,谓语动词由with短语前面的主语来确定单复数,因为主语是Mrs Wang 所以be动词用was,故答案为:was
点评 本题考查用所给单词的适当形式填空,首先要根据语境明确句意,然后再根据相关语法对所给单词在形式上做出正确的变化.
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