English exercises so and but because

English exercises so and but because. Choose the right conjuctions: so, and, but, because to complete the following sentences in English.
1. I couldn't sleep there was a party next door.
2. I phoned all my friends invited them to come to my house.
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 though the window for a minute or two, went inside.
6. We didn't have any money we couldn't go to a restaurant.
7. He closed all the doors and windows, and he left the house.
8. I was feeling very tired, I went to bed very early.
9. Betty is usually on time, tonight she arrived half an hour late.
10 I couldn't buy anything I forgot my wallet.