EX3. 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) _____________________________________________________________________________________________________________ 6. It’s cold outside, but James isn’t wearing a jacket. (might) _____________________________________________________________________________________________________________ 7. My brother is at a restaurant and he feels a little hungry. (may) _____________________________________________________________________________________________________________ 8. I should go to work today, but I feel a little sick. (might not) _____________________________________________________________________________________________________________ 9. Perhaps Susan knows the address. (may) _____________________________________________________________________________________________________________ 10.         It’s possible that Joanna didn’t receive my message. (might)