Put the following sentences in a) past indefinite passive; b) future indefinite passive. add the necessary adverbial modifiers. 1. the engineers are given interesting problems for solving. 2. automatic tools are used by the operator. з. he is allowed to use a computer. 4. metals are flowed out into special containers. 5. the experiments with new devices are carried out. 6. metal is processed in various ways. 7. any new design of a solar power station is discussed. 8. the problem of computer development is considered by the scientists. 9. the efficiency of this device is increased. 10. the particles of nuclei are studied.

Indefinite Passive. Add the necessary adverbial modifiers. 
1. The engineers were given interesting problems for solving. 2. Automatic 
tools were used by the operator. З. He was allowed to use a computer. 4. Metals were 
flowed out into special containers. 5. The experiments with new devices were
carried out. 6. Metal was processed in various ways. 7. Any new design of a solar 
power station was discussed. 8. The problem of computer development was 
considered by the scientists. 9. The efficiency of this device was increased. 10.
The particles of nuclei were studied.