1.This is a desk.
否：This isn't a desk.
疑：Is this a desk?
2.That is my eraser.
否：That isn't my eraser.
疑：Is that your eraser?
3.I am very happy.
否：I am not very happy.
疑：Are you very happy?
4.These are pandas.
否：These aren't pandas.
疑：Are these pandas?
5.Those are strong.
否：Those aren't strong.
疑：Are those strong?
6.We are from China.
否：We aren't from China.
疑：Are you from China?
7.He is kind to new classmates.
否：He isn't kind to new classmates.
疑：Is he kind to new classmates?
8.She can spell"apple“.
否：She can't spell "apple".
疑：Can she spell "apple"?
9.I'll take it.
否：I won't take it.
疑：Will you take it?
10.He'd like a glass of water.
否：He wouldn't like a glass of water.
疑：Would he like a glass of water?
11.You may come in.
否：You can't come in.
疑：May I come in?
12.They could carry the heavy box.
否：They couldn't carry the heavy box.
疑：Could they carry the heavy box?
