1) some people saw a ufo in the sky above london last night.
a ufo in the sky above london was seen by some people last night.
2) they reported it to the police.
the police was reported about it.
3) the army sent a helicopter to look at it more closely.
a helicopter was sent by the army to look at it more closely.
4) the ufo shot the helicopter down and killed both men in it.
the helicopter was shot down by the ufo and both men in the helicopter were killed.
5) people have given photographs of the ufo to the police.
the police have been given some photographs of the ufo by the people.
6) experts are looking at them now.
they are looking by experts now.
1. columbus discovered america.
america was discovered by columbus.
2. we keep money in a safe.
our money is kept in a safe.
3. a bee stung her.
she was strung by a bee.
4. they speak italian in italy.
italian is spoken in italy.
5. they have taken his aunt to hospital.
his aunt has been taken to hospital by them.
6. the boys damaged the television.
the television was damaged by the boys.
7. da vinci painted the mona lisa.
the mona lisa was painted by da vinci.
8. he invited 30 people to his party.
30 people were invited by him to his party.
9. they grow bananas in africa.
bananas is grown in africa.
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