************CORRECTIONS************

Student: Recently, I felt disconcert because I couldn't find my drawing files.
Corrections: Recently, I felt disconcerting because I couldn't find my drawing files.

Explanation: Lina, I'm sorry! It's also my fault, it should be "disconcerting [adjective]" because "disconcert" is a verb.
-----------------------------------------------------------------

Student: I drew that drawing very hard. So I wanted to find that files.
Corrections: I worked hard when I drew those drawings, so I wanted to find those files.

Explanation: Your subject is plural, so we use "those".
-----------------------------------------------------------------

Student: I tried find the files, but I couln't find the files.
Corrections: I tried to find the files, but I couldn't find them.
-----------------------------------------------------------------

Student:I gave way to despair, then I had a great idea.
Corrections: CORRECT!
-----------------------------------------------------------------

Student: The idea was 'demobilize the computer'.
Corrections: The idea was to 'demobilize the computer'.
-----------------------------------------------------------------

Student: Then I tried to demobilize the computer and that work was a success.
Corrections: CORRECT!

Explanation:
-----------------------------------------------------------------

Student: Finally, I found my drawing files and I felt happy.
Corrections: CORRECT!

*****************TEACHER'S COMMENT********************

Hello, Lina!

Thank you so much for submitting your homework. You did a pretty good job. Please check your corrections, these are few. Keep it up.

I'll see you again in Friday. Have a great Christmas!

- Teacher Claire