Beyond the immediate cash flow crisis that the museum faces, its survival depends on if it can broaden its membership and leave its cramped quarters for a site where it can store and exhibit its more than 12,000 artifacts.
(A) if it can broaden its membership and leave
(B) whether it can broaden its membership and leave
(C) whether or not it has the capability to broaden its membership and can leave
(D) its ability for broadening its membership and leaving
(E) the ability for it to broaden its membership and leave
答案是B,但是if和whether在这里应该是一样的吧?那么能选B应该A也能选了吧?另外,depends on后面应该要接一个名词性的东西,形成depends on something的结构,而whether...是一个条件状语,应该不可以用来depends on吧?