My father arrived Beijing a cold morning.
A. in; in B. at; in C. in; on
—I had a backache. I can’t sleep. —_______
| A．Don’t worry. | B．Not so well. |
| C．I’m sorry to hear that. | D．Why? |
Sam spends two hours _______ his homework every day.
| A．to do | B．doing |
| C．do | D．does |
— Watching TV too much _______ bad for your eyes.
—I’ll go to bed right away.
| A．is | B．are | C．was | D．be |
Do you prefer _______?
| A．skate | B．skates |
| C．skating | D．skated |
—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 |