為什麼many，too不對

   因為many是形容詞，too是副詞，many修飾可數名詞，too修飾形容詞或者副詞。形容詞不修飾副詞。

   例如：1）I have many friends here.

2） It is too hot today.

3) The house is too old to live in.

4) The horse is running too fast to catch up with.

  too much+不可數名詞too many+可數名詞。much too+形容詞或者副詞。例如：1)There is too much work to do.2) We have too many jobs   to do.3) He is much too tired.4) Tom does everything much too carefully.