问题
选择题
The math problem is _____ difficult that only _____ students can work it out.
A．too; a few
B．so; a few
C．so; a little
D．enough; little
答案
答案：B
题目分析：too太,也;so如此,这么;enough足够的;a few几个,修饰可数名词复数;a little一点,修饰不可数名词;little一点,表示否定含义;句意:这道数学题有点难,以至于只有几个学生能计算出来.结合语境可知选B.