it is ___ question that all of us can answer it well.
问题描述：
it is ___ question that all of us can answer it well.
a.so simple
b.so a simple
c.such a simple
d.such simple
答
选C,因为so+形容词+冠词,而such+冠词+形容词,这个是固定搭配,其次,question是可数名词,所以可以加冠词,如果原题把question换成wether（天气）的话,就不能加冠词了,因为wether不可数