Ответ:

Ex3

1. My purse was stolen by a pickpocket

2. A lot of mobile phones are stolen every year

3.She was asked a lot of questions by the police

4. Sone crimes aren't reported to the police

5. When was your car stolen?

6. Are CCTV cameres used here?

Ex4

1 The paintings were hidden in the back of their van.

2 Guns aren't used in many robberies.

3 The shoplifter was caught by a shop assistant.

4 Crime dramas are watched by millions of people on TV.

5 Was the thief sent to prison?

6 A lot of jewelery is stolen from this shop.

7 The missing money wasn't found.

8 Are children sent to prison there?

Ex5

1. was created

2. were published

3. is helped

4. is known

5. are solved

6. were made

7. are watched

8. was announced