题目内容
【题目】The thief was last noticed the office building by the back door on the screen.
A.enters B.entering
C.entered D.to entering
【答案】C
【解析】See/notice/watch/hear/make等词,后跟不带to的不定式作宾补,但在被动语态中,要还原to。即,sb. be seen/noticed/watched/heard/made to do sth.。故选C。
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