There is still much too a big gap between the top and the bottom in some groups in this area.

题目

There is still much too a big gap between the top and the bottom in some groups in this area.
这个句子有误吗?我也看到过much too big a gap到底哪个对?why?

答案

答案是much too big a,为什么不能用a too much big?短语修饰名词放在冠词前面