题目内容
15.By the time I locked the door,I realized I _______my keys at home.( )| A. | had repaired | B. | have forgotten | C. | had forgotten | D. | had left |
分析 翻译:我锁上门时,我意识到我把钥匙忘在家了.
解答 答案:D. A.had repaired修理; B.have changed忘记; C.had forgotten忘记,常指忘记做某事; D.had left忘记,常指把东西忘在什么地方,根据By the time I locked the door,在我意识到之前我已经把钥匙忘在家里,表示过去的过去,所以用过去完成时,过去完成时的构成:主语+had+动词的过去分词,故选D.
点评 本题考查的是过去完成时,表示过去某一动作之前已经发生或完成的完成的动作.
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