Jack is not in the office at the moment—Oh, he ______ those who are going to take the driving test in an hour.

It can be easy to _______ such bad habits as smoking and heavy drinking, but it is not so easy to quit.

I don’t know________ they have passed the exam.

__ the quickening pace of life, competition goes increasingly fierce in all respects of life, bringing great pressure as well as plentiful chances to everyone.

Are you still thinking about yesterday’s party?— Oh, that’s ________.[ ]