17. " Where is the post office?" She asked Could you tell me.................................... 18. What does this word mean? Do you know................................................ 19. What's the time? I wonder.......................................................... 20. Where did you park your car? Can't you remember......................................... 21. Is Ann coming to the meeting? I don't know..................................................... 22. What time did he leave 2 days ago? Do you know................................................. 23. Where I can change some money? Could you tell me..........................................    

17. " Where is the post office?" She asked
Could you tell me where the post office is?

18. What does this word mean?
Do you know the meaning of this word?

Alternative: Could you explain the meaning of this word to me?

19. What's the time?
I wonder what the time is.

Alternative: Could you please tell me the time?

20. Where did you park your car?
Can't you remember where you parked your car?

Alternative: Do you know where you parked your car?

21. Is Ann coming to the meeting?
I don't know if Ann is coming to the meeting.

Alternative: Do you have any information about whether Ann will be coming to the meeting?

22. What time did he leave 2 days ago?
Do you know what time he left 2 days ago?

Alternative: Can you tell me the time he left 2 days ago?

23. Where I can change some money?
Could you tell me where I can change some money?

Alternative: Do you have any information on where I can exchange currency?