--Look! The telephone is broken. Someone damaged it purpose.
--That may be right. But perhaps it was broken accident.
A. on; by
B. by; by
C. on; on
D. by; on
网友回答
(答案→)A. on; by
B. by; by
C. on; on
D. by; on
解析:考查固定词组,on purpose意思“故意地”,by accident意思“不经意”,句子意思“看!电话坏了,某人故意破坏。可能是对的,但是也可能是不经意弄坏的”,所以选A