A:What are these?B.:These are books.A:Thanks.

A:What are these?B.:These are books.A:Thanks. Are these ( ) books?A:they B :them What are these?( ) carrots A.it's B.these a Are these ---- a.yours books b.books theirs Do you know what these books are useful _________?A.to B.for Whose are these?----They are______ books.A.teacher B.teacher What are those?------( ) ----------------hens A.These are B. 填空 What are these?A.They are buses B,These are buses C,Yes , What are these?（）are maps.A.These B.They C.It D.They’re what are these?these are books.哪里错了 These are her books.These books are what are these in english.a feet b shoe