问题补充:
This isdifficult problem that few students can work it out.
A. so
B. so a
C. such
D. such a
答案:
A. so
B. so a
C. such
(答案→)D. such a
解析:so、such 区别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. 组成句型,so…that…或so …that…,句意:这个问题如此的难,以至几乎没有同学能算出。故选D。
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