Could you tell menext? I really don't know. A HOW to do B what to do C to do what

问题描述:

Could you tell me next? I really don't know. A HOW to do B what to do C to do what
D to do how 说出答案并说明理由

B
tell me后面是宾语从句,要是一个完整的句子,句子要表达的意思是接下来需要做什么.A为什么不行