【题目】Because of the traffic jams ahead, the policeman, whose voice came out of the fog, was trying to ________ Polly down.
A. break B. turn C. wave D. bend
在线课程【答案】C
【解析】考查动词辨析。A. break打破；B. turn变得；C. wave挥手；D. bend弯曲。句意：因为前面有交通堵塞，那个警察的声音从雾中传来，正挥手试图让Polly停下来。指警察指挥交通的动作，根据常识，应该是挥手，故选C。