1 Это письмо написано им.
2 Этот подарок сделан им? ( т.е. он сделал подарок?)
3 Эти дома построены не ими.
1 is eaten
2 is asked
A sound of violin is heard in the hall. Звук скрипки слышен в коридоре.
или
A sound of violin is being heard in the hall. Звук скрипки слышен в коридоре.
или
A sound of violin was heard in the hall. Звук скрипки был слышен в коридоре.
Am I woken up by my mother at 7 o'clock? Меня будит мама в 7 часов?
или
Was I woken up by my mother at 7 o'clock? Меня разбудила мама в 7 часов?
A very funny story isn't (wasn't) told to us. Очень смешную историю не рассказывают ( или не рассказывали) нам.
Объяснение:
2 - to be reading
3 - to have been reading
4 - to have read
5 - to take
6 - to be taken
7 - to help
8 - to be helped
9 - to see
10 - to be back
11 - to be helped
12 - to have been playing
13 - to have done
14 - to have been working
15 - to have broken
16 - to be getting
17 - to have been helped/to be helped