Question

подчеркните в каждом из предложений
глагол-сказуемое и определите его видо-временную форму и залог.
Переведите предложения на русский язык.
1. The US Environmental Protection Agency (EPA) was established in December
1970, bringing together in a single agency the many federal programs to protect
environment.
2. The biosphere is strongly affected by all sorts of human activity.
3. The problem has already been discussed at a large number of conferences.
4. Scientists are studying various aspects of human biology and the origin and
development of human race.

Answer 1

1. Was established - passive voice, past passive (пассивный залог, время - простое прошедшее)
2. Is affected - passive voice, present passive (пассивный залог, простое настоящее время)
3. Has been discussed - passive voice, present perfect passive (пассивный залог, время - настоящее завершённое)
4. Are studying - active voice, present continuous (активный залог, время - настоящее длительное)

Answer 2

1.was established(Past Simple)
2. is affected(одна из форм страдательного залога)

3.has been discussed(одна из форм страдательного залога)

4.are studying (Pr. contin.)