Question

Подчеркните верный ответ на вопрос.
1) Can you read this book?
Yes, sure. No, it cant. Yes it can.
2) Can I help you?
Yes, you must. No, he isnt. Yes, please.
3) Must they do their homework?
Yes, they are. Yes, they must. No, they cant.
4) Can he play tennis?
Yes, he cant. No, he cant. Yes, he must.
5)Must I play the piano?
No, you cant. Yes, I must. Yes, you must.

Answer 1

1. Yes, sure
2. Yes, please 
3. Yes, they must
4. No, he can't
5. Yes, you must

Answer 2

1 yes it can
2 yes please
3 yes they must
4 yes he must
5 yes you must