1. There are some dark clouds in the sky, so it may rain.
2. It's nine-thirty and Jack feels tired, so he might go to bed early.
3. My class starts soon, but I'm not sure where the classroom is, so I may not find it on time.
4. Sarah has some money and she is at a clothing store, so she might buy a new dress.
5. Kelly and Jenny are friends, but they live in different cities. They are both traveling to Washington this summer, so they may meet up there.
6. It's cold outside, but James isn't wearing a jacket, so he might catch a cold.
7. My brother is at a restaurant and he feels a little hungry, so he may order some food.
8. I should go to work today, but I feel a little sick, so I might not go.
9. Perhaps Susan knows the address, so she may help us.
10. It's possible that Joanna didn't receive my message, so she might not know about the plan.