I have a red shirt ___ I have a blue shirt.
and
I have a cat, ___ I don't have a dog.
but
The sun is hot, ___ the snow is cold.
but
He's tall, ___ I'm short.
but
I have a red ball ___ I have a blue ball.
and
She is happy ___ she is funny.
and
She is happy, ___ he is sad.
but
I like pizza ___ I like hamburgers.
and
He likes playing football ___ he likes swimming.
and
She's fast, ___ I'm slow.
but
She has a cat ___ she has a dog.
and