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After I ______ for half an hour, I realized that he was not coming.A、have waited
After I ______ for half an hour, I realized that he was not coming.A、have waited
游客
2023-10-04
59
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问题
After I ______ for half an hour, I realized that he was not coming.
选项
A、have waited
B、waited
C、had been waiting
D、was waiting
答案
C
解析
该句的主句是一般过去时 (realized) ,从句的谓语动词 (wait) 表示的动作发生在主句谓语 (realize) 之前,构成了过去的过去,也就是过去完成时,而且已经持续了一段时间,所以应该用过去完成进行时,表示动作 (wait) 发生在过去的过去,并一直持续到了过去某一时间。
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