Fill in the blanks with SO, BUT, ALTHOUGH, or BECAUSE.
1. I couldn't sleep________there was a party next door.
2. I phoned all my friends,______no one will come to my party.
3. It was very cold outside,_______I put on my warmest clothes.
4. We couldn't go out___________the weather was so bad.
5. He looked through the window for a minute,_________he didn't see anything.
6. We didn't have any money,_______we couldn't go to a restaurant.
7. He didn't turn on the air conditioner_____________it is extremely hot.
8. I was feeling very tired,__________I went to bed very early.
9. Betty is usually on time___________this morning she arrived half an hour late.
10 Kevin helped people a lot,__________no one helped him when he was in trouble.