Don’t be angry with him. He didn’t make the mistake .A. in turnB. on purposeC. by accident

Don’t be angry with him. He didn’t make the mistake .
A. in turn
B. on purpose
C. by accident
D. in total

A. in turn(答案→)B. on purposeC. by accidentD. in total解析：短语辨析题。A. in turn 依次、轮流 B. on purpose 故意 C. by accident 偶然 D. in total 总共 “别生他的气，他不是故意犯错的” 选B

这个问题我还想问问老师呢