Question

We will try our best to solve it__ it is

A. whatever difficult B however difficult C no matter difficult D no matter what difficult
我选择了D 但是错了 我想知道 however 和 whatever 的 差别在哪里？ 为什么D 不对

Answer 1

however=no matter how, whatever = no matter what

所以however whatever的区别，就是how what的区别。

两者都是常用的疑问词，不过how是一个疑问副词，可以理解为一个程度副词，往往是对于一个形容词的程度进行提问时使用的。而what是一个疑问代词，他只能对事物进行提问。

所以，how difficult是在提问“多么困难”，而what difficult是没有意义的。

Answer 2

However = no matter how 无论怎么， however difficult:无论怎么困难
Whatever=no matter what,无论什么

Answer 3

however 然而 whatever 无论 。We will try our best to solve it whatever difficult it is .意思是：无论它多困难,为我们将尽我们最大的努力去解决它。 故要选A