[讨论] 语法 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

答案是(E).但本人琢磨不透，请指教.

选E，of experts (it assigned) to do ....这里的it指代white house.

 up 这题实在太奇怪了