20. Never before in the history of music have musical superstars been able to command so extraordinary fees of the kind they do today. (A) so extraordinary fees of the kind they do today (B) so extraordinary fees as they are today (C) such extraordinary fees as they do today (D) such extraordinary fees of the kind today’s have (E) so extraordinary a fee of the kind they can today
答案是C,请问B为什么不可以, 主句不是have been able么, 从句为什么用do代替呢?
13. For all his professed disdain of such activities, Auden was an inveterate literary gossip. (A) For all his professed disdain of such activities (B) Having always professed disdain for such activities (C) All such activities were, he professed, disdained, and (D) Professing that all such activities were disdained (E) In spite of professions of disdaining all such activities
如果so修饰extraordinary,那就应该是the fees are so extraordinary...extraordinary fees连在一起中心词肯定是fees啊。。 呵呵。 至于那个be able to ..command,我觉得这个句子你可以背下来,因为很容易理解,但是解释不出来。呵呵。