Turn the following into indirect questions.

1. Who left this bag here?
Do you know who left this bag here?

2. Who is that woman?
We need to find out .....................

3. What time does the next train leave?
Can you tell me ..................

4. How much does this dress cost?
Could you tell me .................

5. Where does Mary live?
I don't know ...................

6. Are the police investigating the robbery?
Have you any idea ............................

7. Did the caller leave a message?
I'd like to find out ...................

8. Is he the manager?
I'd like to know ..................

9. Who reported the crime?
Do you know ........................

10. How did they find the missing jewellery?
Have you any idea ...............................