Помогите,пожалуйста,нужно указать место и залог глагола) 1.They can be seen in our...

Помогите,пожалуйста,нужно указать место и залог глагола)


1.They can be seen in our library every day.
2. The delegation is headed by the Prime Minister.
3. The child was often left home alone.
4. These houses were built last year.
5. All letters had been written when we came.
6. This film is much spoken about.
7. The machine is being tested now.
8. His work has been already finished.
9.I was told to wait for him.
10.Your letter will have been answered by Monday.
11. The experiment was being carried out from ten till twelve o'clock.
12.Children under sixteen will not be admitted here.

1 Passive -They can be seen
2 is headed -passive
3 was often left -passive
4  were built passive
5 had been written -passiv
6 is much spoken -passive
7 is being tested  -passive
8  has been already finished - passive
9  was told -passive
10 will have been answered  -passive
11was being carried  -passive
12 will not be admitted -passive