Помогите пожалуйста, необходимо выписать по английскому глагол сказуемое и определить его

Помогите пожалуйста, необходимо выписать по британскому глагол сказуемое и найти его видовременную форму и залог.
When current is passing through a resistor its temperature rises high. A transformer substation served for transmitting and distributing electric. Having repaired the engine the mechanic showed it to the engineer. Aluminium is used due to its low cost and high efficiency. A great progress in electronic industry has been achieved due to semiconductors. The new engine is being tested in the laboratory.