--- Tom, can you tell me      __ ?

   --- Sorry, I don’t know.

   A. how many people have been here       B. when is the meeting

   C. why did they decide to do it           D. where will it start

--- Tom, can you tell me ________ ?

--- Sorry, I don’t know.

1. A.
   how many people have been here
2. B.
   when is the meeting
3. C.
   why did they decide to do it
4. D.
   where will it start

—Hi, Tom! Can you tell me when        for London?

—Yes, tomorrow afternoon.

A．leaving        B．leaves             C．to leave        D．are you leaving