Do they drink coffee? - I was wondering ....
I was wondering if they drink coffee.
Is David a lawyer? - Could you tell me ....
Could you tell me if David is a lawyer?
Where are you from? - I'd like to know .....
I'd like to know where you are from.
How does it work? - I have no idea ....
I have no idea how it workS.
What are you doing? - Do you have any idea ...
Do you have any idea what you are doing?
Are you coming to the party? - I'd like to know .....
I'd like to know if you are coming to the party.
Did the restaurant close last weekend? - Do you know ....
Do you know if the restaurant closed last weekend?
When does the train arrive? - Could you tell me...
Could you tell me when the train arriveS?
Where is John? - Could you tell me ...?
Could you tell me where John is?