大全 17

Bob Wilber became Sidney Beacher's student and protege when he was nineteen and, for a few years in the 1940's, came as close to being a carbon copy of the jazz virtuoso in perfmorance as anvone has ever come.

a. as anyone has ever come

b. as anyone ever had been

c. as anyone ever had done

d. that anyone ever did

e. that anyone ever came

(1) The answer is a, but I chose B instead. I think we should use past perfect tense, not present perfect tense, as is used in a. In B, "been" matches "being" in "being a carbon copy...".

Can someone explain it ?

(2) How to understand "carbon copy" within the sentence?

Thanks

这道题A/B的时态在各自特定的状态下都可以使用，A表达的是至今，B表达的是Bob表演前。但是A决定了句子的一些因素，除非其有其他错误，否则，这个时态如果不错的话，应该保留。另外，ever的位置只有A是对的，其应该放在助动词和动词之间。

carbon copy 解释为：几乎完全雷同的复制品；及其相似的人或物。句子中可以理解为：和...及其相似

stoneren ,请问A中的come应如何解释呢

这与原句不大符合啊   

being a carbon copy of the jazz virtuoso in perfmorance as anvone has ever come.

..., came as close to being a carbon copy of the jazz virtuoso in perfmorance as anvone has ever come.

颜色代表对应关系。come可理解为：成为；达到...水准