题目内容
4.When Mary arrived she found all her children ______ for nearly two hours.( )| A. | have gone to sleep | B. | fell asleep | ||
| C. | was falling asleep | D. | had been asleep |
分析 当玛丽到达时,她发现所有的孩子睡了将近两个小时了.
解答 答案D
由arrived可知,玛丽"到达"这一动作发生在过去.而孩子们"睡着"的动作发生在"达到"之前.即:"过去的过去",要用过去完成时.故选D项.
点评 考查过去完成时.主要根据时间状语或关键的动词判断时态.然后选择合适的结构即可.
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