III. Use "may (not)" hoặc "might (not)" to write the following sentences. (Modal verbs)
1. There are some dark clouds in the sky. (may)
2. It's nine-thirty and Jack feels tired. (might)
3. My class starts soon, but I'm not sure where the classroom is. (may not)
4. Sarah has some money and she is at a clothing store. (might)
5. Kelly and Jenny are friends, but they live in different cities. They are both traveling to
Washington this summer. (may)