Are you clever?的肯定否定回答?

问题描述:

Are you clever?的肯定否定回答?
我在一份试卷上看到这道改错题
Are you clever?Yes,I am .
这道题哪儿错了?
我知道回答Yes,we are.也是对的.

Yes,I am .
No,I am not.
或Yes,we are.
No,we aren,t.