The pictures are on the wall.(改为否定句,疑问句并做回答)
问题描述：
The pictures are on the wall.(改为否定句,疑问句并做回答)
答
否定句：The pictures aren't on the wall.
疑问句：Are the pictures on the wall?
Yes,they are.//No,they aren't.
答
The pictures aren't on the wall.
Are the pictures on the wall?
Yes,they are/No,they aren't
答
The pictures are not on the wall.
Are the pictures on the wall?
Yes,they are./No,they aren't.