题目

The teacher called Tom to his office because he was caught _____ in the exam.   A. to cheat    B. cheating  C. cheated     D. cheat   答案： B 句意: 因为汤姆被发现在考试中作弊, 所以老师把他叫到办公室。catch sb.doing sth.为固定用法, 意为“某人做某事被抓个正着”。  

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