1 How can we reduce the risk of cancer?
A cut in B cut down
C cut off D cut out
2 The steadily rising cost of labor on the waterfront has greatly increased the cost of shipping cargo by water.
A continuously B quickly
C excessively D exceptionally
3 During the past ten years there have been dramatic changes in the international situation.
A permanent B powerful
C striking D practical
4 The most crucial problem any economic system faces is how to use its scarce resources.
A puzzling B difficult
C terrifying D urgent
5 His new girlfriend had omitted to tell him that she was married.
A failed B deleted
C refused D rejected
6 The substance can be added to gasoline to accelerate the speed of automobiles.
A quicken B shorten
C loosen D enlarge
7 We should never content ourselves with a little knowledge only.
A convince B satisfy
C comfort D benefit
8 We should contemplated the problem from all sides.
A deliberated B thought
C described D designed
9 His health had deteriorated while he was in prison.
A became better B became worse
C became stronger D became weaker
10 If you want my advice, you should revise your plan for the trip to Beijing.
A change B exchange
C enlarge D encourage
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