some comments on Stefania's posted conversation

Stefania,

You have written a coherent conversation. The questions and answers flow smoothly from beginning to end. I've added some comments about the writing. 


T: Hey! How are you?
A: I'm good and you?


This is correct, but the answer should be 2 sentences, separated by a period and a capital letter. 


T: Great. How long did it take you to your interchange?

Remember that the form is: How long did it take you to+ VERB.

"Your interchange" is not a VERB. It's a NOUN. 

The correct verb could be "do"

"How long did it take you to do your interchange?"


A: It took me 1 year.

The answer is correct. 

But the meaning of "interchange" is not clear. I think you mean "exchange studies" (where somebody studies and lives in another country while a student from that country comes to theirs). 

Note: In "exchange studies," "studies" is a NOUN (plural). 

T: Cool. How was the experience?
A: Amazing! There are many things to do.

Question and answer are correct. The PRESENT TENSE "there are" can be correct because the things you are talking about continue to exist. 

T: How long did it take you to learn French?
A: It took me 4 months. What about you? How long did it take you to your interchange?

The question here has the same error as the first one. 


T: It took me 1 year as well.

This answer is correct. A: How long did it take you to learn English?
T: It took me 3 months. I learned very fast.

Both question and answer have no errors. A: Wow! Yes, super fast. Well nice to talk with you, see you later.

Punctuation errors are in this sentence. It needs a COMMA (,) after "Well" and "Well, nice to talk to you. See you later" is 2 sentences. They have to be separated by a PERIOD (.) and a CAPITAL LETTER. 

T: Ok. Nice to talk with you too. Bye
A: Bye


That's correct. 

Ok. Nice to read this. Bye.