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Many things have happened ______ I saw you.
Many things have happened ______ I saw you.
admin
2010-02-05
22
问题
Many things have happened ______ I saw you.
选项
A、when
B、before
C、since
D、for
答案
C
解析
本题考点为since“自从……从……以来”,该词常用来引导一个时间点或引导一个从句,用从句时,一般为过去时,其主句为完成时或现在完成进行时,例如:She hasn’t been home since her marriage. He has been living in Canada since 1990, Nobody has heard of him since he left home in 1995. It is just a week since we arrived here. (如果主句表示的只是时间,则可用一般现在时)。A)when当……时,不能与本句的主句中的完成时态搭配使用。例如:When I was studying in Peking University, I attended many famous professors’ lectures, When he was a child, he was ill -treated by his step-mother。 B)before在……之前,如果此句用before引导,主句应该用过去完成时。例如:He had finished all homework before he turned on the TV. He told me that he had been to China before he came to the United States. D)for表示时间时,不能引导一般过去时。例如:That’s enough for the present, he has waited here for several hours.
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