The question ___ to do next hasn't been solved ;we should discuss it the day after tomorrow.A that B.what C.which D.when 那么c D为什么不可以呢?

分类: 作业答案 • 2022-04-15 12:53:56

问题描述：

The question ___ to do next hasn't been solved ;we should discuss it the day after tomorrow.
A that B.what C.which D.when
那么c D为什么不可以呢?

答

这是what引导的同位语从句,是对question内容的解释.因为what 做从句中do的宾语.
不用which,which不与to do直接连用.
不用when,when是时间状语,不能做do的宾语.