单项选择:Many kinds of books_________ in the library in our school now.A.were kept B.are keeping
问题描述：
单项选择:Many kinds of books_________ in the library in our school now.A.were kept B.are keeping
单项选择:Many kinds of books_________ in the library in our school now.A.were kept.B.are keeping C.are kept.D.have kept
答
C