问题补充:
How beautifully she sings! I have never heard____.
A. the better voice
B. a good voice
C. the best voice
D. a better voice
答案:
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”。