— I think that no one would like to buy this kind of fruit.— That’s true. It terrible.
—Mr. Hu, can you tell us how to learn swimming well? —Sure. But remember we can learn nothing well _______ hard work.
I think _______ necessary for you _______ breakfast.
As we know, ________is good for our health.
— Must I finish my homework at once?— No, you ___________.
—Would you mind the room? —Certainly not. I’ll do it right away.