问题 选择题

-I joined the League _____ May 4th, 20ll.  What about you

-I have been a League member ______ three years ago.

A.in; for

B.on; for .

C.in; since

D.on; since

答案

答案:D

此题重点考查介词的基本用法。确指某一天的时候要用介词on。Since表示自从…后跟点时间,常用在完成时中。

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