Please ________ when the plane will take off.

1. A.
   look for
2. B.
   find
3. C.
   find out
4. D.
   look up

Please ________ when the train will leave.

A. find???????? B. find out??????? ?????? C. look for???????? D. look after

 Please ________ when the work will be finished.

A. look for      B. find        C. look at            D. find out