You don't have to / must be quiet in the library. People are studying! 1
You have to / mustn't have a passport to travel abroad.
2 People mustn't need to travel on public transport without a ticket.
3
We didn't have to / needed to get up early yesterday, because there was no school. .
You don't have to / must finish your homework. The teacher wants to check it tomorrow.
5
You mustn't /need to wear trainers for PE lessons.​

1 Chemistry was more important to Alexander Borodin than composing music.(True - верно)
2. In his youth chemistry was his first hobby. (True - верно)
3. He was an army surgeon for most of his life. (False - неверно)
Later, he became professor of chemistry at the Medico-Surgical Academy in St.Petersburg, and spent the rest of his life teaching students there.
4. He liked lecturing more than composing music. (True - верно)
He loved teaching. He also said that he could only compose when he was too sick to give lectures.

1. Химия была для Александра Бородина важнее, чем сочинение музыки.(Верно)
2. В юности химия была его первым увлечением. (Верно)
3. Большую часть своей жизни он был армейским хирургом. (неверно)
Позже он стал профессором химии в медико-хирургической Академии в Санкт-Петербурге и провел там остаток жизни, обучая студентов.
4. Он любил читать лекции больше, чем сочинять музыку. (Верно)
Он любил преподавать. Он также говорил, что может сочинять только тогда, когда слишком болен, чтобы читать лекции.

Russia is the biggest country in the world. It is big and beatiful. There live a lot of people different nationalities.

Some people have stupid stereotypes about our country. Like: every russians drink vodka, it's the coldest country and so on. Yes, in Russia like in every country live alcoholics and people who like drugs and smoking. But people in every country drink alcohol and smoking it's normal in our time. But how people make an opinion about Russia if they never been there? Cities in Russia are very beautiful.Russia has big history. People must know it!

In conclusion, if want to know how people live and what culture do they have, never listen to other people just come to this country and have may be the biggest adventure of your life.