—Mr. Hu, can you tell us how to learn swimming well?
—Sure. But remember we can learn nothing well _______ hard work.
A. with B. after C. without D. at
I think _______ necessary for you _______ breakfast.
A. this; have B. that; to have
C. it’s; to have D. it’s; have
As we know, ________is good for our health.
A. walks B. walking C. walks D. walked
— Must I finish my homework at once?— No, you ___________.
A. hasn’t B. mustn’t C. needn’t D. must
—Would you mind the room?
—Certainly not. I’ll do it right away.
A. clean B. cleaned C. cleaning D.to clean
You’d better _______ too much meat. You are much too fat.
A. not eat B. eat other
C. not to eat D. don’t eat
