再请教大全987之181T(885section21-17）

再请教大全987之181T(885section21-17）

看了讨论贴还是不太明白，请问B中可以把been看成与原文中being对应吗？还有B，C中的had done为什么不行呢？非常感谢！

1.        Bob Wilber became Sidney Bechet’s student and protégé 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 performance as anyone 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（A）

(E) that anyone ever came

一般来说，在类似本题的情况下，as 后只有补出主语和助动词就可以了。

那么本题为什么用as anyone has ever come 呢？因为前面有两个动词became和came，不然会引起歧义。