Ответ:
1. She was allowed to use a mobile phone.
2. You should hurry if you want to catch a train.
3. He couldn’t start the car.
4. When was the train should arrive?
5. He should travel on business every month.
6. You should be more attentive.
7. He can quickly repair the computer
8. We should take a taxi.
9. He couldn’t attend the conference.
10. Robert must go to London tonight.
11. Can you see me off?
12. It must be said that if you want to speak English, you will have to work hard.
13. It should be noted that any engineer can give you information on this issue.
14. I hope they could buy a ticket for the last train..
15. You can go, I’ll finish the work myself
16. We should meet at the station at 6 pm
17. It should be stressed that she was forced to tell the police inspector everything.
18. It should be noted that the announcements on the board should be written in capital letters.
19.You should not stop work till you finish it.
20. It should be noted that people in big cities should spend a lot of money to pay for travel in public transport.