перепишите следующие предложения, подчеркните в каждом из них глагол- сказуемое и определите его видовременную форму и залог. переведите предложения на язык. в разделе (б) обратите внимание на перевод пассивных конструкций.
а) 1. they had completed the tests у the end of the week.
2. the light went out while we were having supper.
б) 1. we were asked many difficult questions at the exams.
2. it has been proved that the average speed of man's speech is 125-160 words per minute.