no one knows___,so we can do nothing about it.

题目

no one knows___,so we can do nothing about it.
A how to do next B how to do the next C what to do the next D what should we do next

答案

C
A,B 缺宾语,D 的语序不对,不能倒装
请及时采纳,不懂继续问( 天天在线 ）
(*^__^*) 祝学习进步! 谢谢!