D. as likely as twice

　　7. 　a certain doubt among the workers as to the necessity of the work.

　　A. It existed B. There existed

　　C. There had

　　D. It had

　　8. (2017·宁波模拟)The cloud never hides the sun. The truth will be known to all　.

　　A. by now B. in time

　　C. at present

　　D. in future

　　9. The harm the modern farming methods have done　the countryside is considerable.

　　A. on B. to

　　C. at

　　D. for

　　10. Stay away from Lynch. He’s a liar. You’ll be cheated if you don’t　.

　　A. break out B. watch out

　　C. take off

　　D. set off

　　11. (2017·金华模拟)—Betty told me the last mountainous bike you preferred to yesterday was bought by John.

　　—Oh, my God! How I regret that I didn’t buy　.

　　A. that B. such

　　C. one

　　D. it

　　12. She is　her mother; she is tall while her mother is very short.

　　A. dislike B. like

　　C. unlike

　　D. fond

　　13. The top leaders of the two countries are holding talks in a friendly　.

　　A. atmosphere B. state

　　C. situation

　　D. phenomenon

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