The weather was awful, BUT / SO we didn't go out.
SO
I didn't give him my phone number BECAUSE / ALTHOUGH I didn't want him to call me.
BECAUSE
He didn't like the song BECAUSE / ALTHOUGH it was by one of his favorite bands.
ALTHOUGH
It was Lucy's birthday, SO / BUT I invited her to dinner.
SO
Greg is an intelligent student BECAUSE / BUT he's very lazy.
BUT
I ran to the supermarket ALTHOUGH / BECAUSE I was in a hurry.
BECAUSE
They didn't want to dance SO / BECAUSE they left the club early.
SO
We didn't go anywhere special, SO / BUT we had a wonderful evening.
BUT
It was a sad story BECAUSE / ALTHOUGH it had a happy ending.
ALTHOUGH
We drove along the street very slowly BUT / SO we couldn't find the house.
BUT
