Question

--Do you know ____________for London tomorrow? 

-- At 6:00 o’clock in the morning.

1. A.
   when did he leave
2. B.
   when he left
3. C.
   when is he leaving
4. D.
   when he is leaving

Answer 1

D
此题重点考查宾语从句的语序和时态，因tomorrow是将来时间，故用D.