Idioms are used all the time and unless you recognize when an idiom is being used what yo

问题补充：

Idioms are used all the time and unless you recognize when an idiom is being used, what you read or hear can easily be misunderstood

A. spoken

B. speaking

C. speak

D. be spoken

答案：

(答案→)A. spoken

B. speaking

C. speak

D. be spoken

解析：考查过去分词做宾语补足语，分析句子成分，what引导的是主句的主语从句，在主语从句中what做read和hear的宾语，用到hear sth done结构，因为speak和what的关系是被动，用过去分词做宾语补足语，句意是：习语一直都被使用，如果习语使用时，你不知道，你读的或是听到被说的很容易被误解。选A。