Jack’s sister has been a tour guide two years ago.A. forB. sinceC. aboutD. in

发布时间：2020-08-21 13:43:10

Jack’s sister has been a tour guide     two years ago.
A. for
B. since
C. about
D. in

网友回答

A. for
(答案→)B. since
C. about
D. in
解析：考查介词。句意：自两年前以来，jack的妹妹就一直是导游，故选B。
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