语法99－01！！！

excellences

2. the most adj.＋ N.的单数还是负数啊？

37.Mathematical puzzles are common into history because they have been used a intelligence tests and amusements. 答案是B，但是为什么D中的intelligence是名词啊，我觉得应该改成intelligent啊！！是不是啊？

谢谢