The math problem is difficult and of them can work it out.A. too much; a fewB. much too;

问题补充：

The math problem is difficult and of them can work it out.

A. too much; a few

B. much too; a few

C. too much; few

D. much too; few

答案：

A. too much; a few

B. much too; a few

C. too much; few

(答案→)D. much too; few

解析：much too实际是too要修饰形容词，much是用来加强语气。 too much对应too many；too much后面通常跟不可数名词。Few和a few都用来修饰可数名词，前者表示否定后者表示肯定，根据句意因问题较难，故很少人做出来，因此选D.