Question

【题目】This is______difficult problem that few students can work it out.

A. so B. so a C. such D. such a

Answer 1

【答案】D

【解析】

试题句意：这是如此难的题以至于几乎没有学生算出它。So，如此，那么，用法是so+形容词，such,如此，那么。用法是：such+(a/an)+(形容词)+名词，但名词前有few,little,many,much修饰时只用so，故选D