2)
1. am
2. had
3. doesn’t
4. will
5. were
6. have
7. don‘t
8. should ( выбрала из предложенных, можно перевести «поезд должен прибыть». вообще правильно было бы просто arrives «поезд прибывает» когда речь идет о расписании, то используется Present Simple)
9. have
10. will
3.
1. Does he seem unfriendly?
2. When I came the typist was typing the letters.
3. The agreement has just been signed by the director.
4. He will be working when his mother returns.
можно и так:
His mother will be working when he returns.
5. Did you go to the cinema yesterday?
6. He had returned before I finished my work.
Объяснение:
2. all of us must be in time for classes
3. when my friend has his English, he has to stay at the office after work. He does not have to stay at the office on Tuesday, Thursday and Saturday and can get home early.
4. Do you have to work hard to do well in your English?
5. " Should we discuss this question now?" "No , we needn't. We can do it tomorrow afternoon."
6. "Please send them this article." "Oh, should I do it now?