such were his words为什么用such,

such were his words为什么用such, such was his anger that his face turn red.为什么是用such? such happy times中为什么用such such. such 为什么不用" such hurry" ,而用" such a hurry" they were staying at such . little 前面用 so 例如 there were such little boys 这里用such 还是 so ----was his anger that his face tured red.为什么要用such 用it不可以吗、 为什么such 形容词 The writer such as were recommended by him in his speech are We were surprised at his words.中为什么用at而不用by?