agree in和 agree on和 agree to 的 用法 和区别

Agree in doing something,赞同作某事,但是帮不帮忙,看情况
agree on something,赞同某东西
agree to +动词 agree to do something
agree to something,这两个结构,都有同意作某市,而且有成人之美,答应的人,还会协助你作成这件事情的的成分在里面