3. The sun was shining brightly when Tom and Sam ..to fishes​

Hello , Sascha !

I received your letter a few days ago.

The school in Moscow is very modern ! Here are friendly students, teachers are very creative teaching lessons I really like everything here ! Every month we have exciting events, and we love to participate in them !  My favorite subject at school is biology  because  biology is the science that studies life ! After all, the life of a living being is so complex and interesting. After school I want to go to Moscow State University!  I will get the profession of a teacher in biology , and teach it to everyone was interesting!

My flat isn’t very big but it is enough for my little family. We have got 5 rooms: living room , kitchen, bathroom, parents’ bedroom and mine. Our living room isn't very huge, but it's very comfortable. I like spending time there, watching TV and talking with my parents. There is a small table, sofa and cooking technique in the kitchen. Parent's bedroom is bigger than mine. They have got a big bed, laptop and small sofa. In my room there is a bed, ma own computer and TV. I often play computer games when I have free time. I like my flat very much and don't want to  change my place of residence.

сама не переведёшь в переводчике?