2) Rewrite:
1. How did your parents go there last night?
-> I don't know......................................
2. Where were Peter and David?
-> I don't know......................................
3. What did she think of that object?
-> I don't know......................................
4. How long will they stay at the birthday party?
-> I don't know......................................
5. What did your mother buy yesterday?
-> I don't know......................................