Passive Voice Revision

The city (found) in the 18th century.

The pyramids (build) by the Egyptians.

The flag of the UK (call) the Union Jack.

Bagpipes (make) of sheepskin.

London (say) to be one of the most expensive cities in the world.

For centuries it (ruin) by foreign aggressors.

According to the ukrainian tradition the honoured guests (welcome) with bread and salt.

The Oxford story (reveal) in the Oxford University.

Bungee jumping (invent) in New Zealand.

Stonehennge (construct) in about 3000 BC.

The letters (deliver) on time by the postman.