Correct my sentences please .
(Verb to be) at past tense :
I was a champion.
He was a successful businessman.
She was a famous actress.
That was my pet.
This was a parrot bird.
It was an annoying cat.
It was an interesting book.
It was a happy memory.
It was delicious dishes.
You were a helpful partner.
They were good friends.
They were last vacation pictures.
We were happy family.
Please if all sentences are good, just tell me that everything is correct.