HELP.Замените модальные глаголы: can, may, must на их эквиваленты: to be able to, to be allowed to, to have to, to be to

1. You may go to the cinema together with your sister tonight.
2. Students must work hard to improve their knowledge of English grammar.
3. Your manager can order some fax-machines in our company.
4. You must look through all the manual instructions to your computer.
5. The classes must go on in spite of the low temperature in the rooms.
6. We can go to the movies tonight.
7. He may visit his English classes and pass his exams this term.
8. I must type this letter as soon as possible.