Exercise 39 Complete the questions.

Model: We have a lot of work tomorrow. You mustn’t be late.

1. You mustn’t /don’t have to tell Mary what I told you. It’s a secret. 2. The museum is free. You mustn’t / don’t have to pay to get in. 3. Terry is a millionaire. He mustn’t / doesn’t have to go to work. 4. We mustn’t / don’t have to rush. We’ve got plenty of time. 5. You mustn’t / don’t have to play with guns. They’re dangerous. 6. ‘Shall I come with you?’ – ‘You can if you want, but you mustn’t / don’t have to.’ 7. Children mustn’t / don’t have to tell lies. It’s very naughty.

Exercise 42 Translate the sentences with different functions of the verbbe.

1. Some trains are to make stops at all railway stations. 2. The experimental tracks are laid without ballast. 3. The train is to run a high-speed service between big cities. 4. Electrified railways are to be found in different countries of the world. 5. The track structure is supported by ballast. 6. This high-speed line is to be put into operation in a month. 7. The radial metro lines in Moscow areconnected by a circle line. 8. The future metro lines are to connect the city’s centre with its suburbs. 9. My goal is to describe the mechanism in operation. 10. We are to complete the construction by the end of the month.

Exercise 43 Translate the sentences with the structureone + modal verb.

Model: One may suppose... Можна припустити …

One must know... Слід знати …

One can hear... Можна почути …

1. One can hear that railways are no more competitive on the global transport market. 2. One must understand that the work of the engine driver requires much experience. 3. One can expect that the average speed of trains will be increased. 4. At the exhibition one could see the latest track-laying machine. 5. One must remember that these rules are very strict.