Zad 1
2 is made
3 was damaged
4 is included
5 were invited
6 are shown
7 are held
8 was written … was translated
9 were overtaken
zad 2
2 How is glass made?
3 When was Australia discovered?
4 What is silver used for?
5 When was television invented?
Zad 3
2 covers
3 is covered
4 are locked
5 was posted … arrived
6 sank … was rescued
7 died … were brought
8 grew
9 was stolen
10 disappeared
11 did Sue resign
12 was Bill sacked
13 is owned
14 called … was injured … wasn't needed
15 were these photographs taken … Did you take
zad 4
2 All flights were cancelled because of fog.
3 This road isn't used very often.
4 I was accused of stealing money.
5 How are languages learnt?
6 We were advised not to go out alone.
