14. --It's said that John____ the examination but failed a second time.

--What a pity!

A. attempted B. attended C. sought 　D. managed　

13. It's none of our business. We should ____ their quarrels.

A. take part in B. keep out of C. keep off D. join in 　

12. Weather satellites are used to send ____ and photos of weather ____ to the earth.

A. information; condition B. informations; condition

C. information; conditions D. informations; conditions

11. A satellite, either natural or man made, travels in an orbit round another object ____ .

A. in the air B. in the space C. out of space D. in space

10. --Your radio doesn't work.

--Yes, it does. The plug______. Just plug it in.

A. isn't connected B. hasn't connected C. isn't connecting D. is connected

9. He opened the envelope, ____ the letter and began to read it.

A. unfolding B. folding　 C. unfolded D. folded

8. Rising costs made it hard to ____ the business.

A. carry out B. carry through C. carry on D. carry into　

7. ______ you know the fact, I never tell you any more.

A. As far as　 B. As long as　 C. Now that　　 D. As soon as

6. This is the way ____ a satellite is carried up into space.

A. in which B. which C. by which D. with which　

5. I think you'd better think it over and make a good ____ .

A. study B. mark C. view D. choice