11: Cash flows to stock and bond mutual funds have gained strength in the last two months, but fund managers have not been eager to invest the new money, instead of preferring to raise the cash levels in their portfolios at the highest level in six months (?).

A: have not been eager to invest the new money, instead of preferring to raise the cash levels in their portfolios at

B: have not been eager to invest the new money, instead preferring to raise the cash levels in their portfolios to

C: have not been eager at investing the new money, instead of preferring to raise the cash levels in thief portfolios to

D: were not eager to invest the new money, instead of preferring to raise the cash levels the cash levels in their portfolios at

E: were not eager at investing the new money, instead preferring to raise the cash levels in their portfolios to

答案是b,d为何不对呢~

我觉得B中instead副词修饰preferring比较好

instead of 是ETS不喜欢的用法 而且这个是比较 需要对称吧

d不对

instead of 用的不对。

raise to 才合理。