Waste paper shouldn't ____ enerywhere.It's our duty to keep our c_英语解答

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

人气：309 ℃　时间：2019-11-15 08:06:09

解答

应该是选A因为是纸片被扔,sholudn't后接动词原形