The math problem is very difficult.So____of us can work it out.

题目

The math problem is very difficult.So____of us can work it out.
A.little B.a little C.a few D.few

答案

few,a few,little,a little
虽然都表示“少”,但
（1）few,a few是可数的,little,a little是不可数的.
（2）a few,a little含肯定意味,few,little含否定意味.
这里是说很难,所以应该是没有人做出来,而且人应该是可数的,所以选D