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SinceJune12008,allthemarketshave

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问题详情:

SinceJune12008,allthemarketshave

Since June 1 2008,all the markets have_________free plastic bags.

    A.to stop to provide             B.to stop providing

    C.stopped to provide            D.stopped providing

【回答】

D

知识点:动词时态

题型:选择题