17.________ there is water nearby,make a special effort to breed fish.( )
A. | Although | B. | Unless | C. | Where | D. | Until |
16.Smokers who regularly drink are nearly________ to suffer from lung cancer as are smokers who don't drink,according to a new study in Cancer Research.( )
A. | twice likely as | B. | twice as likely | C. | as twice likely | D. | as likely as |
15._______ the volunteers have to consider their own problems,they are still encouraged by the spirit.( )
A. | If only | B. | Even if | C. | As long as | D. | As far as |
12.Anyone can borrow my books ___he keeps them clean and returns them on time.( )
A. | even if | B. | unless | C. | so that | D. | as long as |
11.-Alice,what s your opinion about my suggestion?
-Sorry,I___.Would you please say it again?( )
-Sorry,I___.Would you please say it again?( )
A. | hadn't listened | B. | wouldn't listen | ||
C. | wasn't listening | D. | didn't listen |
10.Hardly had the speaker begun to talk__there were laughs.( )
A. | as | B. | then | C. | than | D. | when |
9.It is mentioned in one of his books that the mastery of English___ a large amount of practice.( )
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A. | calls for | B. | calls on | C. | calls at | D. | calls in |