Some policemen were sent there to the villagers down the trees.
A. keep;cutting
B. prevent;cutting
C. prevent;to cut
D. stop;to cut
网友回答
A. keep;cutting
(答案→)B. prevent;cutting
C. prevent;to cut
D. stop;to cut
解析：考查固定短语 prevent sb from doing sth 阻止某人做某事