Ответы
1. Everyone, I mean the teacher asked every student, so everyone has answered and took a part in the dialogue.
2. The teacher is the one who asks, and the students are the ones who answers.
3. They discuss everything about science and it's types.
4. I can't describe it with scientific words but it is a subject with which people learn something new, make discoveries.
5. Yes, I know what these words mean
6. I think that it is a science, because you probably won't be the best engineer only if you are good artist.
7. Probably it is Russian word "инженер" which sounds like "injaener" on english.
8. Yes, I use it everytime I do my english homework.
9. I don't know, probably all of the tenses.
10. Firstly I ask my classmates because I don't want to distract my teacher while he explains the lesson.
11. No, I remembered the main rules and I can spell them without a transcription
12. I play computer games or having a chat mostly.
13. These are maths, chemistry, informatics, biology and physics.
14. It's math. It seems too easy for me.
15. Yes, I like to learn something new.
16. Yes, but not always, in these ways I'm asking for a translation