Itsbadtothrowaboutpa的知识精选

单项选择。It'sbadtothrowaboutpapereverywhere.Wemustavoid
问题详情:单项选择。It'sbadtothrowaboutpapereverywhere.Wemustavoid________that.A.do B.doing    C.did D.todo【回答】B知识点:动词和动词短语题型:选择题...
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