Proudest Accomplishment so far this year

Hi there, [이름]! Thanks foe sending in your composition. Writing is as important as speaking so I\'m glad you\'re taking up the challenge to write your own thoughts.

I must say it had been a productive year for you. Well done! ^^ I hope 2020 would bring you more exciting opportunities. See you in class! ^_^

~T.Avery

In this year, there are so much thing for me.

>> This year, there are a lot of things that happened to me.

I applied to academy industry project which collaborate to Philips.

>> I applied to an academy industry project which collaborated with Philips.
That is my mainly accomplishment for this year.

>> That is my main accomplishment for this year.

And another is I went to Germany to exhibit my product.

>> CORRECT
In there, I introduced my product to many buyers and customers.

>> CORRECT

To introduce something to another requires a lot of effort.

>> CORRECT
I have to prepare how to explain and how to reply their questions.

>> I had to prepare how to explain and how to reply to their questions.

It is not common experience for student to be in that kind of Huge exhibition.

>> It is not a common experience for a student to be in that kind of huge exhibition.

And last thing is I started to learn English conversation.

>> CORRECT

There was a motivation for me to start it.

>> CORRECT

When I was in Seoul to participate in IIDC which is global workshop dealing with social problems with many other countries students. At the time.

>> When I was in Seoul, I participated in IIDC which is a global workshop dealing with social problems of many other countries\' students at the time.
I didn’t understand and speak well.

>> I didn’t understand nor did I speak well.

That was a trigger for me to Start learning English deeply.

>> CORRECT

All of three, I think that is proudest  Accomplisments. Thank you.

>> All of these three, I think, are my proudest  accomplishments. Thank you.