Never try to cheat in the exams, because if you do you will never your ill behavior.
——Hi, John. Are you busy? ——
The boss of the company is trying to create an easy atmosphere ______ his employees enjoy their work.
See, your computer has broken down again! It doesn'tsense to buy the cheapest brand of computer just to save a few dollars.
I wish I ______ at my sister’s wedding last Tuesday, but I was on a business trip in New York then.
We need to get to the root of the problem______ we can solve it.