_____music she is playing Awhat nice Bhow nice Cwhat a nice Dhow nice a
问题描述：
_____music she is playing Awhat nice Bhow nice Cwhat a nice Dhow nice a
答
how 作状语,修饰形容词,副词或动词
what 作定语,修饰名词（名词前可有其他定语）,单词可数名词前要加不定冠词 a (an).
A不对,what nice修饰的music可数,改为what a nice就正确了.
所以就选C