We in the same school for three years.
---Would you mind ______ the window, please? It’s too hot. ---Not at all. A. opening B. to open C. closing
You _____ __ wash your hands before meals. It is good for your health. A. must B. can C. have to
— May I ask you some questions? — ______________ A. Yes, he may. B. Sure, go ahead. C. Of course not.
You’d better _______ too much meat. You are much too fat. A. not eat B. don’t eat C. not to eat
We should take care ________ ourselves. A. to B. for C. of