While Midori was a girl,she could hum songs and difficult _______music.

题目

While Midori was a girl,she could hum songs and difficult _______music.
A.a piece of
B.piece
C.pieces of
D.the piece of
主要是原因啊

答案

c 该句说Midori是一个小女孩的时候就能哼歌曲以及难的一些音乐 应该是不只一首乐曲,所以选C