Use may / might / may not/might not.
1. Sally isn't feeling very well. Sally (not go) _________ to school tomorrow.
2. It's my aunt's birthday, so we _________ (buy) her a new CD.
3. Paul doesn't study very much. He _________ (not pass) his exams.
4. Sarah and Tom _________ (not come) to the beach with us this weekend.
5. My sister is going to London for a week. I _________ (lend) her my new camera