of 、for、 to 、with的区别与用法

of 、for、 to 、with的区别与用法
例如（1）the government should further strengthen the supervision and control of the production and circulation of plastic bags.其中的control of the procduction为什么不能用to呢.（2）I am writing to ask if you can recommend a child as the recipient of my financial assistance.其中的的writing to ask 可以换做writing for asking （3）thank you very much for having given me this opportunity to take such a promisiong position in such a best-selling magazine.其中的thank you very much fo having give 可以换做to having give 还有with,这几个词我老是分不清楚,不知道什么时候该用哪一个,希望有人能帮帮我 还有那个可数名词,是不是前面不加冠词之类的都要用复数?