One of the most important questions they had to consider was of public healthA. whatB. thi

发布时间：2020-08-14 23:15:19

One of the most important questions they had to consider was     of public health
A. what
B. this
C. that
D. which

网友回答


A. what
B. this
(答案→)C. that
D. which
解析： 句意为：他们必须考虑其中最重要的问题是公共卫生。考查that作代词，that 作代词，往往用于特指，相当于“that＋名词”，它也只能代替事情不能代替人。
以上问题属网友观点，不代表本站立场，仅供参考！