1.I am a student...
2.Do you...? No, we don't. We are at the cinema.
Или:Are you? No, we aren't.
3.The Maths home task is very difficult.
4.The children is ...
5.Is Sofia ...? Yes, she is. She is ill.
6.They are... . There are...
7.Am I..? Yes, I am...
8.The bank's are closed...
9.Are you...? No, I am. I am a...
10.They are..., they are...
Или:They don't.