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The question ___ to do next hasn't been solved ;we should di

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/08 18:07:14
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?
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.