9. I want to know where the bus stop is.
10. What does your sister do?
11. It's good for your health to do morning exercises everyday.
12. It's unhappy to get a bad mark at any subjects.
13. It's our duty to keep our school green, clean and attractive.
15. We don't want to go out and neither does he.
16. Mary likes to eat ice cream and so does Peter.
