余姚市肖东中学
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  • 科目:英语
  • 题型:单选题
  • 难度:容易
  • 人气:2029

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
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Since June 1 2008,all the mark