we all know that paper (.) by chinese people inthe old days A.was invented B.are invented C.Is invited

分类: 作业答案 • 2021-12-20 03:38:59

问题描述：

we all know that paper (.) by chinese people in
the old days A.was invented B.are invented C.Is invited

答

A was invented

答

A.was invented 过去式,被动语态