Answer:
1 Do you know if she's over 18?
2.Do you know if she can speak English?
3.can you explain how the machine how the machine works?
4.Have you decided where you are going on holiday?
5.Do you know what you are going to buy?
6.Do you know if you will be here tomorrow?
7.have you got any idea if she likes horse riding?
8.can you tell me how often you go to the gym?
9.do you know where she lives?
10. I wonder if she's ever been to London
4.
