【題目】With the help of computers, people will find it easier to keep the traffic smoothly.
A.to run
B.run
C.running
D.are running

【答案】C
【解析】句意:在電腦的幫助下,人們發(fā)現(xiàn)保持交通順暢運行更容易了。keep……doing sth. 是固定用法,譯為“保持……一直”,故選C。

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