Англ.яз. 4-7. Помогите

2. The US President isn't English. He's American.
3. Snow isn't hot. It's cold.
4. Five and six isn't twelve. It's eleven.
5. You're not English. You're Russian.
6. We're not in Russian class. We're in English class.
7. Rolls-Royce cars aren't cheap. They are expensive.

3. Yes, she is.
4. No, it is not.
5. No, it is not.
6. No, I'm not.
7. Yes, I am.
8. No, they are not.

2. It's not hot today.
3. I'm not married.
4. Where's..
5. They're not..
6. We're..
7. You're..

2. You are not...
3. My flat is
4. Her son is not..
5. His wife is
6. They are..
7. We are not