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61.____native to North America, corn has now spread all over the world.

A. In spite of B. That it is C. It was D. Although

62. Our civilization cannot be thought of as____in a short period of time.

A. to have been created B. to be created  C. having been created D. being created

63. We feel it is high time that the Government ____something to check the inflation.

A. did B. do C.should do D. would do

64. It has been proposed that we____our decision until the next meeting.

A.delayed B.delay C. can delay D. are to delay

65. Hurricanes are severe cyclones with winds over seventy five miles an

hour ____originate over tropical ocean waters.

A. which B. who C. where D.how to

66.____is announced in the papers, our country has launched a large scale movement against smuggling and fraudulent activities in foreign currency exchange deals.

A. What B. As C. Which D. That

67. All the flights____because of the snowstorm, we had to take the train instead.

A.were canceled B. had been canceled  C. having canceled D. having been canceled

68. Once ____, this power station will supply all the neighboring towns and villages with electricity.

A. it being completed B. it completed   C. completed D. it completes

69. He might have been killed ____the timely arrival of the ambulance.

A. but for B. except for C. besides D. except

70. If you have never planted anything, you won’t be able to know the pleasure of watching the thing you have planted ____.

A.grow B. to grow  C. growing D. to be growing

【答案】DCABA BDCAA

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