17. Choose the best variant:

1. This expressway ____ next year.

a) is completed b) was completed c) will have been completed d) will be completed

2. Local road-building materials _______ be employed to reduce the cost of construction.

a) were b) is c) must d) able

3. A lot of new roads _____ this year.

a) will build b) have built c) have been built

4. New roads _____ in our city every year.

a) was built b) have been built c) has been built d) are built

5. A great number of roads _______ in Belarus since the war.

a) are designed b) has designed c) has been designed d) designed

18. Use the correct tense-forms of the verbs in brackets:

If tomorrow you ________ (drive) down Spencer Road you ________ (get) a shock. Suddenly the speed limit changes from 35 to 60. But take it easy! At this point of the road miles ________ (change) into kilometres.

Without warning, the city street department recently ________ (replace) its road signs to metric units. Officials said that the Federal Highway Administration ________ (announce) beforehand that all road signs ________ (become) metric within one month. Many drivers _______ (ask) about their reaction to it and they _______ (object) to it strongly. And they _______ (support) by over 170 members of the Congress. The innovation _______ (discuss) in the Congress several times before the majority of its members _______ (agree) to it. Frankly speaking, when I _______ (drive) along Spencer Road last night I _______ (not / puzzle) by the change that much.

19. Define the functions of the Participle and translate these sentences:

1. Working in the laboratory he deals with different new materials. 2. The approach roads have been designed to provide free flow for traffic approaching and leaving the bridge. 3. While designing a tunnel there are many factors to be taken into consideration. 4. The bridge was constructed while maintaining traffic on the existing road underneath. 5. Having become popular, suspension bridges were built in different places of Great Britain. 6. Having investigated the static and dynamic behaviour of the system, the scientists approved it. 7. Having been given the site, they examined it thoroughly. 8. Having been built nine centuries ago, the bridge has been reconstructed several times. 9. Being obtained in the laboratory the new substance showed valuable properties. 10. The problem being discussed at the scientific conference is of great importance for industry. 11. The professor told us about the experiments being carried out in the laboratory. 12. When excavating the ground the workers found some very hard rock thus discovering naturally formed concrete. 13. If protected by a special coating this material becomes waterproof.

20. Point out the sentences with the Participle as:

а) an Attribute b) an Adverbial modifier с) Absolute Participial Construction

1. The engine tested showed that it needed no further improvement.

2. While driving a car one should be very attentive.

3. Some new devices having been obtained, the researcher could make more complex experiments.

4. A new electronic instrument will calculate how far a car can drive on the fuel left in the tank.

5. Having been repaired, the engine began operating better.

6. Inspecting the motor, the engineer made some valuable remarks.

7. Having done a number of operations, the machine stopped automatically.

8. The cars at that time were very small, the engine being placed under the seat.