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)
