Ex 1:
1. I asked her if the food in Nha Trang was good.
2. She asked me if there was a toilet in my room.
3. I asked her if she liked to join our Drama Group.
4. Ann asked me if I could speak English.
5. I asked her if there was an air-conditional in the bed room.
6. She asked him if he often got home after 10.30 pm.
7. I asked her if she sometimes had a party.
8. I asked him if he smoked.
9. She asked me if I smoked. 
10. I asked her if there was a fridge in the kitchen.
11. I asked her if I lived there. 
12. She asked me if I had any American friends.
13.. I asked her if she liked Vietnamese music. 
14. I asked him if he would be to America in the future.
15. I asked her if she wanted me to help her. 
p/s: Không có gì e nha. ^^ Mong là những lời giải giúp ích cho e. ^^