Make the sentences passive
1) Kellie usually writes brilliant essays.
2) Many centuries ago people used the Tower of London as a prison.
3) They built the Millennium bridge in 2000
4)Millions of tourists visit Westminster Abbey every year.
5) Keats wrote that beautiful poem.
6) In the UsA they elect the president every five years
7) We ate up all the cakes yestarday
8) William the Conqueror built the Tover of london