We don't know___it next.Let's go and assk Mr.LiA.what to do B.whethever to do我选的是B,是错误的.为什么错?答案A为什么是对的?

We don't know___it next.Let's go and assk Mr.LiA.what to do B.whethever to do我选的是B,是错误的.为什么错?答案A为什么是对的?
We don't know___it next.Let's go and assk Mr.Li
A.what to do B.whethever to do
我选的是B,是错误的.为什么错?
答案A为什么是对的?

We don't know___it next.Let's go and assk Mr.LiA.what to do B.whethever to do我选的是B,是错误的.为什么错?答案A为什么是对的?
what to do 是做什么.应该是We don't know what to do next,不能要it.你是不是抄写错误了?
whether to do 意思是：是否做.你写的whethever是什么意思?

我觉得都不对
应该是we don't know how to do it next或者是we don't know what to do next或者是we don't know what to do with it next
首先从我开始学英语到现在没有见过whethever，不排除我见识短浅嘿嘿…
相关语法
“疑问词+不定式动词”其主要功用有下列五种：

全部展开

我觉得都不对
应该是we don't know how to do it next或者是we don't know what to do next或者是we don't know what to do with it next
首先从我开始学英语到现在没有见过whethever，不排除我见识短浅嘿嘿…
相关语法
“疑问词+不定式动词”其主要功用有下列五种：
⑴当主语，如：
● When to hold the meeting has not yet been decided.
● Where to live is a problem.
● How to cope with the rising cost of living becomes a daily discussion topic.
⑵当宾语，如：
● We must know what to say at a meeting.
● He could not tell whom to trust.
● Do you know how to play bridge?
⑶当补足语，如：
● The problem is where to find the financial aid.
● The question is who to elect.
⑷当名词同位语，如：
● Tom had no idea which book to read first.
● Do you have a rough impression how to do it?
⑸当宾语补足语，如：
● Jim is not sure whose to choose.
● Mary and John are not certain whether to get married or not.
适用于“疑问词+不定式动词”的动词包括：“know, see, decide, tell, ask, consider, discover, explain, forget, guess, hear, imagine, inquire, learn, remember, think, wonder, understand”等。
有点值得特别注意的是：当这结构当宾语时，它的作用等于名词分句，例如：
● I could not decide which dictonary to buy. / I could not decide which dictionary I should buy.
● Jack did not know where to find such a good teacher./ Jack did not know where he could find such a good teacher.
有些动词，如“ask, show, tell, advise, inform, teach”等，可以先有个宾语，然后才接着加上适当的“疑问词+不定式动词” 结构。例如：
● The chief technician showed the apprentice how to repair the machine.
● Have you told him where to get the application form

收起