求助 GWD21 37题

puzzledog

Q37
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
为什么选E呢，结构是什么？我选的D, assigned for doing 应该是错误的，可是其他选项觉的更不对。

puzzledog

谢谢，懂了~

lohabrianer

E为正确答案：
assign的用法包括：assign sth.；assign sb. sth.；assign sth. to sb.
assign sb. to sth.；assign sb. to do sth.
并没有assign for doing，

chairperson of...of...+修饰成分，修饰的是chairperson
it指代的是the white house, 这是个定语从句，因为所修饰的内容在从句

中作宾语，that省略：The W named R chairperson (that) it assigned

to do...