помогите пожалуйста.необходимо переделать в Passive

Nowadays. A lot of computers are мейд by them in Korea.
The character of Mickey Mouse was created by Walt Disney sixty years ago.
A funny story will be told us by John.
The house already has been built by them
A free sightseeing trip was offered to tourists by them.
A new rule will be explained by them.
Olga was impressed by Sydney.
A cup of coffee was offered me by her.
My favorite film was shown by them yesterday
Australian English is influenced by American English.
This song will be sung at the party by us.
A trip to the mountains was promised by dad to us.