Question

___you do your homework ,__mistakes you will make

A the more carefully ,the fewer B The more carefully .the less
这里不是应该用less 表示少吗？？为什么用fewer

Answer 1

the more carefully you do your homework ,the fewer mistakes you will make

fewer是few的比较级，加可数名词的复数形式。less是little的比较级，加不可数名词。

mistakes是可数名词的复数形式，所以要用fewer

Answer 2

less修饰不可数名词，few修饰可数名词。

mistakes是可数名词，所以用fewer。