同位语从句：抽象名词如：Warning，idea，fact +that 从句，大概率是同位语从句。
同位语从句是解释内容，
定语从句是限定范围。
on the ground of 基于，由于
on 从句+ grounds 基于...理由
on what they say were fraudulent grounds
难句
Although the sums involved are small, investors are now sensitive to any signs of distress and midsized banks are an obvious place place from which they might emerge.
distress 危难
they指“any signs of distress”
midsized banks are an obvious place place from which they might emerge. 正常语序是：
Midsized banks are obvious place where they might emerge.