____hard work you have done It's very kind of you to say so.A What B How C What a D How a 选哪个说详细点

____hard work you have done It's very kind of you to say so.A What B How C What a D How a 选哪个说详细点
____hard work you have done It's very kind of you to say so.
A What B How C What a D How a 选哪个说详细点

____hard work you have done It's very kind of you to say so.A What B How C What a D How a 选哪个说详细点
A what 后面加名词 work 不可数 所以不用C how 后加形容词或者副词 永远没有 how a how an