1 Do you know where the teacher has gone?

2 Could you tell me if/whether it rains a lot here?

3 I don’t know if/whether Sue and her mom are going with us.

4 I wonder how much the holiday will cost.

5 I’ve no idea why Marco stopped the car.

6 I don’t know what you were thinking.

7 I want to know if/whether you have ever heard of Lenni Rieffenstahl.