They tried to restrict access to __ they believed to be dangerous areas.
They tried to restrict access to ________ they believed to be dangerous areas.
A) what
B) which
C) that
D) everywhere
为什么A不行.
人气：499 ℃ 时间：2020-04-17 16:24:26
解答
因为后面的AREAS是说明地点.如果没有areas,可以用what
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