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10.-Where is Peter?I can't find him anywhere.
-He went to the library after breakfast and ________ his essay there ever since.(  )
A.wroteB.has written
C.has been writingD.was writing

分析 --Peter在哪里?我到处找不到他.
--他早饭后去图书馆了并且自那以后就一直在写论文.

解答 答案:C.
分析句子的内容ever since可知,此处应该指的是ever since breakfast,所以用现在完成进行时,强调他一直在忙着写论文,所以应该使用现在完成进行时,故选C.

点评 本题考查现在完成进行时,表示从过去某个时间点开始的动作,一直持续到现在,还可能继续下去.做题时,重点体现一种强烈的情感.

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