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20. Over the past decades, sea ice     in the Arctic as a result of global warming.

A. had decreased    B. decreased   C. has been decreasing  D. is decreasing

試題詳情

19. Life is like a long race     we compete with others to go beyond ourselves.

A. why   B. what   C. that    D. where

試題詳情

18. I like    in the autumn when the weather is clear and bright.

  A. this    B. that    C. it    D. one

試題詳情

17. It was the long March Rocket 2F, as reported,    sent Shenzhou VI spaceship into space.

  A. which   B. what   C. that    D. as

試題詳情

16. Don’t leave the water    while you brush your teeth.

  A. run    B .running   C. being run  D. to run

試題詳情

15. -May I tell this to my close friend?

-No, you    . Never let anybody else know about it.

  A. needn’t    B. shouldn’t    C. mustn’t     D. can’t

試題詳情

14. The world is changing fast. I strongly believe that one will easily fall behind     he keeps on learning.

  A. unless     B. if      C. when    D. as

試題詳情

13. His speech at the meeting was really wonderful, and it could never be any     .

A. best      B. better     C. worse   D. worst

試題詳情

12. All the      indicate that he has been deeply involved in the crime.

A. evidence   B. fact   C. factors   D. cause

試題詳情

11. -Are you free after school?

-Sorry: I’ve planned to treat a friend of mine to dinner     for his help.

A. in terms    B. in honor   C. in turn   D. in return

試題詳情


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