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。

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...

puzzledog

谢谢，懂了~