英语选择you should try to get a good nights' sleep_____much work you have to doAno matter Balthough Chowever Dwhatever解释一下为什么选C不选A不是A 是为什么不选B 抱歉

英语选择you should try to get a good nights' sleep_____much work you have to doAno matter Balthough Chowever Dwhatever解释一下为什么选C不选A不是A 是为什么不选B 抱歉
英语选择you should try to get a good nights' sleep_____much work you have to do
Ano matter Balthough Chowever Dwhatever
解释一下为什么选C不选A
不是A 是为什么不选B 抱歉

英语选择you should try to get a good nights' sleep_____much work you have to doAno matter Balthough Chowever Dwhatever解释一下为什么选C不选A不是A 是为什么不选B 抱歉
1.whatever 是形容词,表示“不管怎样的,不论什么”,这本句中修饰名词短语 much work,意思是“不管有多少工作”,另如：
Whatever book you may read,read it carefully.不论你读什么书,总要读得仔细.
I know nothing whatever about it.关于这件事我什么也不知道.
2.no matter 不能单独用作连词,必须和副词 how、when、where、why 或者代词 what、who、which一起使用才能引导让步状语从句.如果把这个句子改为 no matter how much you have to do 也是成立的.

如果选A的话 要用no matter how
however也有不管怎样的意思
例如
I'll come however busy I am.
我不管怎么忙都会来的。
although连词，“虽然；尽管；即使；（通常只能用于句首）然而；可是（可以用于句中）”。

区别no matter 与although时
最好把although 与but放在句子中连起来翻议一下

选A的话必须no matter 后面加个 how意思等于 however
这句话意思是“不管你有多少工作要做，你都应该睡个好觉”。