题目内容
—Are these books?
—Yes, ____.
—Yes, ____.
[ ]
A. they are
B. they aren't
C. these are
B. they aren't
C. these are
A
练习册系列答案
相关题目
--- Are these your bikes?
---No, _______ aren’t.
| A.they | B.them | C.these | D.their |