题目内容
20.I ____________ a picture when my mother came back from work.( )| A. | drew | B. | draw | C. | am drawing | D. | was drawing |
分析 我妈妈下班回家的时候我正在画画.
解答 答案:D.
结合 when my mother came back from wo可知表达的是过去正在进行的动作用过去进行时was/were+doing,主语I,故was,故答案是D.
点评 过去进行时.表示过去在某一时间段或某一段时间内正在发生或进行的动作或状态.其形式为 主语+was/were+V-ing.常与表示过去的时间状语连用,如:last night,last Saturday等;或者与when,while,as引导的过去时间状语连用.例如:We were watching TV from seven to nine last night.昨天晚上七点到九点的时候我们在看电视.What was he researching all day last Sunday?上周日他一整天都在研究什么?
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