How beautifully she sings! I have never heard＿＿＿＿．
A. the better voice
B. a good voice
C. the best voice
D. a better voice
网友回答
A. the better voice
B. a good voice
C. the best voice
(答案→)D. a better voice
解析：voice 指“啜音”。此处不定冠词与比较级连用，表示“(以前)从未听过比她唱得更好的”。