This question is so hard that very students can answer it.A. few B. littleC. a fewD. a li

问题补充：

This question is so hard that very students can answer it.

A. few

B. little

C. a few

D. a little

答案：

(答案→)A. few

B. little

C. a few

D. a little

解析：few很少，表示否定含义，修饰可数名词复数；a few几个，表达肯定含义，修饰可数名词复数；little很少，表达否定含义，修饰不可数名词；a little一点，表达肯定含义，修饰不可数名词。句意：这个问题是如此之难，以至于很少有学生能回答。结合语境可知下文表示否定含义，学生们是复数形式，故选A。