这两句话有没有语法错误？

来源：百度知道 编辑：UC知道 时间：2024/05/25 19:20:45
Economics plays very momentous role along with the rapid development of society which has a closely relationship with a nation
I also make some English friends in my hometown, which contributes directly on my English study.
如果有的话，请帮忙改正一下

Economics plays very momentous role in the rapid...
I also make some English friends in my hometown, which contributes directly to my English study.

economics plays a momentous role along with the rapid development of society ....
also make some English friends in my hometown, which contributes directly to my English study.

Economics plays a very momentous role in the rapid development of society ,(是非限制性定语从句要加逗号)which has a closely relationship with a nation
I also make some English friends in my hometown, which makes direct contributions to my English study