Подчеркните в предложениях сказуемое, содержащие модальный глагол или его эквивалент.

1. Our team must assemble the device.

2. The workers of this plant are to increase the productivity of labour.

3. Planes couldn't fly without information about the weather.

4. For many centuries the scientists were unable to discover the secret of the atom.

5. Without electricity man had to work only during day light hours.

6. Scientists are to begin their experiments only after careful collecting all necessary data.

8. Подчеркните в предложениях глагол-сказуемое, определите его видовременную форму и залог.

1. The man who is searching (pres cont active) this tourist is  (pres simp active) the senior inspector of the Pulkovo.

2. The current in a conductor can be detected (pres simp passive) due to the heat which it sets up (pres simp passive)  when it is flowing  (pres simp passive) the wire.

3. Usually, the items that fell (past simp active) into the hands of Customs agens, were (past simp active) already in very poor condition.

4. This man can be relied  (pres simp passive) upon.

5. We were shown  (past simp passive) many interesting exhibits at the Museum.

6. The luggage was carefully investigated  (past simp passive).

7. Profit maximization is achieved (pres simp passive) by means of minimization of costs.

8. Pensions and other social payments are raised (pres simp passive) every year by the rate corresponding to the rate of inflation.

9. I had done  (past perf active) the task by 5 o'clock.

10. She has never studied (pres perf active) a medical College.