如何理解这个abettervoice

请看下面一题：

How beautifully she sings! I have never heard _________ voice.
A. a better                 B. a best                   C. the better              D. the best
此题容易误选D，认为最高级前要用定冠词。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 exactly;      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”。