题目内容
11．While the women ，the accident happened．（ ）| A． | shopped | B． | is shopping | C． | was shopping | D． | were shopping |
分析 当女人们正在购物的时候，事故发生了．
解答 答案：D．结合后文the accident happened可知表达的是过去正在进行的动作，故用过去进行时was/were+doing，主语the women复数，故答案是were，故答案是D．
点评 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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