Mr. Hu, can you tell us how to learn swimming well—Sure. But remember we can learn nothing well _______ hard work.

Ms He has two daughters, and both of are studying in China.

Do you know if we will go for a picnic this Saturday— I think we will if we ______have any classes.

Sometimes we are asked ______ we think thelikely result of an action will be

Have you made an apology ______ him ______ breaking his window? —Yes, I have