--- I’m sorry I can’t go with you.

  　--- ______? Haven’t you agreed?

  　A. How’s that                B. What is it  

  　C. Why don’t you             D. What do you think

　Trees are usefully to us in three important ways:         1. ________

　  they give us wood and another products;                     2. ________

　　they give us shade and they help to stopping droughts and floods. 3. ________

　　However, people in many part of the world                   4. ________

　　have not realized that the third benefit                       5. ________

is the more important. A large number of                     6. ________

　　trees have cut down, but new ones                          7. ________

　　haven't been planted. It is really danger                       8. ________

　　for people. Though we do not try to keep the balance of nature,   9. ________

　　we will lose our live environment.                          10. ________

—If I________________tired, I would have gone there!

A.　　  were not   　　　　　　   　　　　　　  

B.　　  hadn’t

C.　　  haven’t been　　　　　　   　　　　　　  

D.　　 hadn’t been

A：Hi, Tom．　　 Haven't seen you for a long time．　　 How are you?

B：Fine, thank you．　　 And you?

A：I'm fine, too．　　 Thanks． How are you getting on with you work in the shop?

B：　1　 I changed my job two weeks ago．

A：　　 　2　 Where are you working now?

B：I'm working in a school library．

A：Oh, great! Do you like your new job?

B：Yes, I like it very much．　3　 I can do some reading when free．　　 Besides, 　4　

A：I'm glad to hear it．　　 How about coming to my house this Saturday afternoon and having supper with my family? My elder brother has just come back from the USA．　　 He'll be very happy to meet you．

B：That'll be very nice! 　5　 I'm sure he'll tell me something very interesting about the United States．　　 See you then!

A：Do come．　　 Bye!

A．I see!

B．Oh, did you?

C．I'd like nothing better than to meet him．

D．I work very hard．

E．I'm not so busy as I was．

F．I no longer work there．

G．I am paid better than I was．