Waste paper shouldn't ____ enerywhere.It's our duty to keep our city clean.A.be thrown B.thronw C.is thrown D.are thrown

分类: 作业答案 • 2021-12-19 11:48:14

问题描述：

Waste paper shouldn't ____ enerywhere.It's our duty to keep our city clean.
A.be thrown B.thronw C.is thrown D.are thrown

答

应该是选A因为是纸片被扔,sholudn't后接动词原形