Hello, teacher. I'm Hazel.
> Correct!
Today was we will see.
> Today, we saw each other.

It was fun to learning English with teacher.
> It was fun learning English with you.

It was a great time to laugh, talk...
> It was a great time to laugh and talk.

I miss you, teacher Joanna.
I love you, teacher.
See you again soon.
> Correct sentences!

Bye, bye. teacher Joanna~ ?´¨?_?´¨?
> Bye bye, teacher Joanna~ ?´¨?_?´¨?

COMMENT:
Hi, Hazel!
It was sad  to know that I will not see you again in my class. On the other hand I am happy and glad that I became your teacher. I've seen the progress in your English skills and it was really good. I am very happy that you will now go to the next level of your training to be a good English speaker. As far as I want to stay as your teacher I can't because life is like this. We need to let go of the people whom we love for them to be better and be successful. I love you Hazel, I will definitely miss you. I hope to see you agian soon! Thank you for everything Hazel!
-Teacher Joanna