What do you think of teaching, Bob?—I find it fun and challenging. It is a job ______ you are doing something serious but interesting.

Come here after class.I have _____________to tell you.

I’d like to see you off at the airport. Could you tell me _____

Poor thing! Jack had a fall while he ______on the ice. He got hurt badly.

The girl seriously injured in the Wenchuan earthquakewas so well taken care of in the hospital that she could ____ get out of bedwithout help．