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【题目】With the help of computers, people will find it easier to keep the trafficsmoothly.
A.to run
B.run
C.running
D.ran

【答案】C
【解析】句意:在计算机的帮助下,人们会更容易地保持交通顺畅。keep...doing sth意为“让...持续作某事”。故选C。

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