A. a better B. a best
C. the better D. the best
【陷阱】容易误选D，认为最高级前要用定冠词。
【分析】其实此题最佳答案为A，该句可视为…I have never heard a better voice than her voice 之省略，全句句意为“她唱得多好啊!我从未听过她这么好的声音”。请再看以下类似的实例：
He is fine, never better. 他很好，比以往任何时候都好。
This bird is really lovely. I’ve never seen a finer one. 这只鸟真可爱，我从未见过这样好看的鸟。
比较以下试题，情形也大致相同：
(1) “I’ve never found a better job.” “_______.”
A. I don’t think so B. Too bad
C. Congratulations D. Don’t worry
答案选C，I’ve never found a better job可视为 I’ve never found a better job than this job 之省略，句意为：我从来没有找到比这份工作更好的工作，即这是我所找到的最好的工作。
(2) “What do you think of the service here?” “Oh, ______. We couldn’t have found a better place.”
A. too bad B. sorry
C. wonderful D. impossible
答案选 C。We couldn’t have found a better place 可视为We couldn’t have found a better place than this place，其意为“我们不可能找到一个比这个地方更好的地方”，即“这是我们所能找到的最好的地方”。
(3) Boris has brains. In fact, I doubt whether anyone in the class has _____IQ.
A. a high B. a higher
C. the higher D. the highest
答案选B，句意为“……我怀疑班上有没有哪个人比他智商更高”，即“我认为他可能是班上智商最高的”。
(4) . How cold it is! We’ve never had ______ this winter.
A. the colder day B. a cold day
C. the coldest day D. a colder day
答案选D。句意为“今年冬天我们还从未遇上过这样冷的日子”。
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