The clock has just twelve. All the teachers should stop and let the students have a rest.
A. hit; to teach
B. beaten; teaching
C. struck; teaching
D. knocked; to teach
网友回答
A. hit; to teach
B. beaten; teaching
(答案→)C. struck; teaching
D. knocked; to teach
解析：本题考查动词辨析和非谓语动词。strike(钟表)敲，鸣，报时；stop doing停止走某事。句意：钟刚刚敲12下，所有的老师都停止教学让学生休息。