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
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
answer is E. I choose D.
我觉得这句话在说，白宫任命某人为某研究委员会的头，所以E比较清楚。it 非常清楚地代表白宫-----某人被白宫named为委员会之头，而这个委员会是同样是白宫assigned to do sth,相比之下，D显然不够准确。
供参考
D，for doing我觉得不太好；
E，it指代white house，觉得assign to do比较顺眼；
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