问题描述：
30.Microblog is a platform _____ people can express their thoughts,show their daily life and communicate with each other by sending post.”
A.what B.which C.where D.when
31.I have told you time and again that these rules should be strictly followed,_____?A.haven’t I B.have I it’s true C.shouldn’t they D.should they
30.C 31 A
A.what B.which C.where D.when
31.I have told you time and again that these rules should be strictly followed,_____?A.haven’t I B.have I it’s true C.shouldn’t they D.should they
30.C 31 A
问题解答：
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