1 Are they your notebooks?yes, it is

2 Is that her clock? No, it isn't

3 Are you a student?yes, i am

4 Are the teachers in the room? No,she isn't 

5 is the father forty years old?yes, he is

6is hung a good student?no, he isn't 

7 is she lan ?yes, she is

8are those chairs?no, it isn't

9are her brothers nam and duong ?yes they are

10 Are you loan? No, i am not

1. Are they your notebooks?                         Yes, they're.

2. Is that her clock?                                        No, it isn't.

3. Are you a student?                                     Yes, I am.

4. Are the teachers in the room?                    No, they aren't.

5. Is the father forty years old?                       Yes, he is.

6. Is Hung a good student?                             No, he isn't.

7. Is she lan?                                                    Yes, she is.

8. Are those chairs?                                          No, they aren't.

9. Are her brothers Nam and Duong ?            Yes, they're.

10. Are you Loan?                                             No, I am not.