这么晕菜的题竟然没人问？GWD31-37

37. GWD31-37

In 1994 the white house named Dr RuthR. Faden chairperson of the federal advisory committee of experts they assigned to do a report on the history and ethics of the government’s radiation experiments on humans in the 1950’s and 1960’s .

A.          they assigned to do

B.          to be assigned doing

C.          that was being assigned doing

D.          assigned for doing

E.          it assigned to do

答案E，为什么？

这个大侠看来很牛，不知道如果真的做题时遇到，不知能不能反应那么快，应该选IT 还是THEY,,佩服！

这里that 引导的定语从句， 是可以省略的。 it 指代white house。 committee of experts that the white house assigned to do ^^^^

it assigned  是定语从句，修饰committee

原句:

Dr. Faden was named by the White House this week as chairwoman of the Federal advisory committee of experts that has been assigned to assess the history and ethics of the Government's radiation experiments on humans that have been recently receiving so much attention.