-- What did your mother say on the phone? She asked .A. why did I fail the test B why

问题补充：

-- What did your mother say on the phone?

-- She asked .

A. why did I fail the test B, why I failed the test C. why did you fail the test

答案：

解析：句意：你的妈妈在电话中说了什么？她问为什么我考试失败了。宾语从句的结构：主语+谓语+连接词+从句。从句在句中作宾语。从句要用陈述句的语序。AC不是陈述句的语序，B是陈述句的语序，故选B