One of the most important question they had to consider was ____o_英语解答

One of the most important question they had to consider was ____of public health.
A.what B.this C.that D.which
答案选的C 请朋友们帮忙解释下

人气：246 ℃　时间：2019-09-26 15:43:22

解答

句子简化后：The question was that of public health.
翻译：问题是：健康（的）问题.
分析：that=the question,读起来不爽,因为重复了；英国人习惯用that代替（就是我们所谓的语法）