—What did you do during your summer holiday?
—I spent my holiday _____ English in Summer Classes.

— Science is so difficult!
— I think you should keep on _____ hard.

How about _____ to the cinema on Saturday?

I spent all my life ______about the history of China and finally I ______ such an honor.        

It is important to stop        to protect our environment.         

I'm against _____animals in cages because I  think cages are not suitable _____ 
them.

Lots of people look forward to _         China.

根据首字母，完成句子。
1. Could you mind c _____ window? It's cold outside.
2. We need to come up w _____ some ideas.
3. Do you a _____ with me?
4. Whether to go or not, you'd better make a  d _____ yourself.
5. Are you looking f _____ to winning the English peech contest?

动名词、动词不定式：   

1. Could you please pass me some        (write) paper? I want to write a letter.
2. On the        (five)floor, there is a drugstore.
3. I'm very        (interest)in that         (interest) story.
4, Did you have fun        (play)near the sea yesterday?
5. Bob takes exercise every day and this makes him        ( strong) than  before.
6. She was        (surprise) to see all of us waiting for her at the school gate.
7. English         (speak)widely in the world.
8. Last night he went to bed late, so he looks        (exhaust) today.
9. The weather in Beijing is quite         (difference) from that in Guangzhou.
10. The fax machine was a wonderful        (invent) at that time.