much many a lot of这三个的用法有什么区别

Question

请问 a lot of ,many ,much 这三个词的区别是什么?
请通俗的释义 如果方便的话也请讲讲这三个词各在什么情况下的用法吧!
There are（填空） peopie in the street .

Answer 1

many 修饰可数名词
much修饰不可数名词
a lot of既可以修饰可数,也可以修饰不可数名词
There are a lot of 或 many people in the street.