题目内容

- Some students often drop litter carelessly in our school. What can we do?
- We can _______ some signs to remind them not to do that again.
A.put upB.put offC.put awayD.put on
B

试题分析:一些学生经常在学校里随意扔垃圾。我们能做什么?我们可以张贴一些标语提醒他们不要那么做。A. put up 张贴  B. put off 推迟C. put away整理D. put on穿上,根据句意,故选B。
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