5. (save) energy,turn off the hot water after you take a shower.

4. Tom and his brother (invite) Kitty to their birthday party already.

3. So you risked (fail) your class just to buy your girlfriend a cake?

2. It's really bad for people (litter) everywhere.

三、动词填空(10%)

1. He (explain) why he was late for this meeting when we arrived there.

() 20. —Will you come to the party next Friday?

— .I will be on holiday in Lijiang by then.

   A. I'm afraid not   B. I hope so   C. I think so   D. I hope not

() 19. The purpose of new inventions is to make life easier,   it more difficult.

   A. not to make   B. not making   C. not make   D. to not make

() 18. He'll send us a message as soon as he Shanghai.

   A. arrives   B. to arrive in   C. arrives on   D. arrives in

() 17. 一Is that man in a red T-shirt Mr Smith?

—It be Mr Smith. He is in London now.

   A. mustn't   B. can   C. shouldn't   D. can't

() 16. —Do you think reading aloud is the best way English?

—Yes,I think so.

   A. to learn   B. learn   C. learns   D. learned