题目内容
20．-My aunt said she called you yesterday morning，but there was no answer．-Oh，we were at home．Maybe my husband with my daughter and mewas washing （wash） my car in the garden．
分析 --我姑妈说昨天早上的时候打电话了，但是没人接听．--哦，我们在家里．可能是我丈夫和女儿还有我正在花园里洗车．
解答 答案：was washing．过去进行时的构成：was/were+现在分词，表示在过去某时刻正在进行的动作．根据第一句提供的时间状语"yesterday morning"可知要用过去的时态．根据"we were at home"以及"（wash） my car in the garden．"可知姑妈打电话的时候由于一家人正在花园里洗车，所以才没接到电话，所以要用过去进行时．另外介词短语"with my daughter and me"对主语he只是起修饰作用、说明的作用，后面谓语动词的单复数形式还是根据主语he来确定．综上所述，结合给出的英语提示"wash"，所以要用was washing来填空．
点评 首先要掌握过去进行时的构成以及用法，然后还要掌握介词短语修饰主语的用法，然后根据具体的语句以及给出的英语提示，就可以确定正确答案．
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