1. Is your house new? – Yes, …it is.
2. Are the students at the English lesson now? - Yes, ..they. are.
3. Is your university in Green Street? – Yes, it… is.
4. Are Helen and Bess your sisters? – Yes, they… are.
5. Is Ben's sister an engineer? – Yes, she… is.
6. Are the pencils red? – No, they are not.
7. Is this room comfortable? - No, it… isn't.
8. Are the textbooks on the shelf? - Yes, .they.. are.
9. Does the girl often visit the museum? – No, she… doesn't.
10. Does this pen write well? – Yes, ..it. does.
11. Is Ben on holiday now? – No, he… isn't.
12. Is Helen nice? - Yes, … she is.
13. Are you an engineer? - Yes, I… am.