1.One of the most important questions they had to consider was____of public healh.A.what.B.this C.that.D.which 为什么选C啊

分类: 作业答案 • 2021-12-20 03:27:06

问题描述：

1.One of the most important questions they had to consider was____of public heal
h.
A.what.B.this C.that.D.which
为什么选C啊

答

that在这里是代词，指代上面的One of the most important questions 。this一般用于引起下文

答

固定句型

答

首先,was之后不是从句,所以不能选从句引导词what和which；
其次,that为指代词,其可换成天the one,为避免重复,故用that指代,而this无此用法