The plane from Beijing to Hong Kong ________ half an hour ago.

Nobody knows _______broke into the house last night and stole the important papers.

It will take a lot of time to______what I really want to do in the future, I think.

Wait a minute! The headmaster hasto tell you.

Now that there is much difficulty in finding a satisfying job, why don’t you do a ______ job to support you for the time being?