One of my classmates accidentallyhe had cheated in the last examination or he wouldn’t ha

问题补充：

One of my classmates accidentallyhe had cheated in the last examination, or he wouldn’t have got so high a mark.

A. pointed out

B. let out

C. took out

D. tried out

答案：

A. pointed out

(答案→)B. let out

C. took out

D. tried out

解析：短语辨析。pointed out指出；let out泄露，放出；took out取出；tried out试验。句意：我的一个同学偶然透露出他在上次考试中作弊，否则他不会得那么高的分数。所以选B。