1. Are you a teacher? Yes, I am.
2. Is your name Marcus? Yes, it is
3. Are your children here? No, they aren't
4. Is this your suitcase? No, it isn't
5. Where are we? I think this is Oxford Street.
6. Is it Saturday today? No, It is Sunday.
7. Are your friends from UK? No they' are from the US.
8. How are you? I'm fine, thanks.
9. How old is Peter? I think he is 30 years old.
10. Are David and Molly here? Yes, they are next to the door