—What do you think of teaching,Bob?—I find it fun and challenging.It is a job ________ you are doing something serious but interesting.
Why don’t you bring ______ to his attention that you are too ill to go on working?
—So you missed the English class this morning? —______ I arrived 20 minutes after it started.
The young man, ______ several attempts to break the world record in high jumping, decided to have another try.
Why not take up some outdoor sports to relax ______ office work? It will also help keep you healthy.
______ you are familiar with the author’s ideas, try reading all the sections as quickly as possible.