поставить предложения в passive voise

explain (объяснять) – explanation (объяснение)

know(знать) – knowledge (знания)

inform(информировать) - information (информация)

progress(развиваться) – progress (развитие)

listen, ivan sings in the next room.it doesn't see that i look at it, as he reads something with a great interest.call him now. i think that he doesn't sleep yet.look at the person who sits at a window. he/she is our lawyer.

1.can

2.could

3.will be able

4.can

5.can(сомневаюсь,не вижу перехода времени)

6.can

7.can