Дайте краткие ответы на вопросы? 1) Are you English? 2) Are you a student 3) Is your teacher married? 4) Is it hot today? 5) is English difficult? 6) Are you twenty one years old? 7) Are you at school? 8) Are your parents at work?

1. No, I'm not. 2. Yes, I am. 3. I don't know. 4. No, it's rainy. 5. I don't thnk so. 6. No, I'm not. 7. No, I'm in college. 8. Yes, the are. 
 
Вы можете изменить (в 3, 4, 5, 7) на другие и просто говорить - 3. Yes, she is/No, she is not. 4.No, it's not/ Yes, it is. 5. No, it's not/ Yes, it is. 6. No, I'm not./Yes, I am.

короче уже некуда  :)