英语达人麻烦帮看下有什么错误没有,帮修改下,

Shortly before,I have made a group presentation with my friends(时态不对,应该是过去式） i made a ...
This is my first year in UK and first presentation in the university(代词最好用it,时态仍然是过去式）
So we chose a topic what is the benefits and the disadvantages of going to university.（what 有问题,可改成 so we chose a topic on the advantages and disadvantages...)
I can find some disadvantages from the students of study in university,and I will avoid these mistakes in my life of university and get an excellent performance in the first year.(还是时态的问题,总的时态都应该是过去时,很明显的问题哦,太多了就不给你纠正了哈）
When we know we have a group presentation,（know时态不对,knew)
we chose topic about university(we chose a topic 冠词不能少）
and we can also find news of relation with students of university by the Internet（we could also find ...on the internet,不是by)
we also find some problems from our surrounding students.(our surrounding students太中式,the students around us)
And then we make a Power Point and started to practice this presentation.( we made a .
除了时态上的错误,语言上还是过得去的哦

Not long before, I made a group presentation with my friends.This was my first year in UK and first presentation in the university,so we chose a topic what is the advantages and the disadvantages of g...

语法上没什么错误，但是感觉是中国式英语，比较生硬。