13．Don’t worry too much about____mistakes. They are ______natural part of learning.

A．不填；a　　　 B．the; a　　 C．the; 不填　　　 D．the; the

12.I finally got the job I wished for. Never in all my life ________so happy!　

A.I felt　 　　　　　　　　　　　 B. did I felt　 　　　　　　　　　　　　 C.I had felt　 　　　　　　　　 D. had I feel

11. Some people work best in the mornings；____ do better in the evenings．

A. and others　　　 B. while others　 C. but others　　　 D. others

10. I suppose you must have finished your homework， ______?

A. mustn’t you　　　 B. do I　 C. didn’t you　　　　 D. don’t I

9. The manager has got a good business ___________ so the company is doing well.　

　 A. idea　　　　 B. sense　　　　 C. thought　　　　　 D. thinking

8. The chickens will provide us _____eggs and feathers ______ we can make use for cleaning the table and benches.　

A．with ; with　　 　 B. with ; of which　　 C. of ; which　　　 D. of ; from which

7．John came very close _______a gold medal for Britain in the Olympics.

　　 A．to win　　　　 B．winning　　　　 C．to winning　　 D．to be won

6. The water has ______ cold and you may get it ______ onto the surface.

A. become, pouring　　 B. changed, pour　 C. got , to pour　 D. gone ,poured　 2.D7.CBB　 12.DA

5. -I don’t think he did the work well.

-Anything that he did was reasonable, _____what you had done. Besides, it’s none of your business. Get down to　　 __ your lessons.

A. comparing; doing　　 B. comparing; do 　C. compared; doing D. compared; do

4. Was the wood　　　 this bridge cut from that tall hill?

A. used to building　　　 B. used to be building　 C. used to be built　　　　　　　 D. used to build