——I don't understand( ).Can you say it again——SureA.what you said B.what did you sayC.what to say D.what you say 理由

——I don't understand( ).Can you say it again——SureA.what you said B.what did you sayC.what to say D.what you say 理由
——I don't understand( ).Can you say it again——Sure
A.what you said B.what did you say
C.what to say D.what you say
理由

——I don't understand( ).Can you say it again——SureA.what you said B.what did you sayC.what to say D.what you say 理由
A.
我不能理解你说了什么.
后面跟的是从句.
所以,用的肯定是一句话.
但是,从句里肯定有宾语,宾语就是what,（what you said,意思是你说的东西,那个说出口的事情,就是what.如果语文好的话,应该可以理解.）所以把what提前,那个句子就是宾语从句了.
而且,从句的时候,后面跟的必须是陈述语序.
反正你记得 宾语是疑问词,后面跟陈述句语序就可以了.讲多了就容易糊涂.