2. Grammar A 1. She must not have studied. 2. She might not have gotten enough sleep. 3. She may not have attended enough classes. 4. Their friends may have missed the bus. 5. Their friends might have forgotten about their appointment. 6. Their friends could have gotten lost. 7. He must have stayed out late last night. 8. He might have gone to a party last night. 9. He may have studied all night long. 10. She might have gotten an from her friend. 11. She could have won a game she was playing. 12. She may have found a wonderful shopping website.
B 1. You couldn’t have written this paper yourself. 2. Jim Thompson must not have planned his disappearance. 3. Jim Thompson must have wanted to vanish. 4. Our teacher may/ might have forgotten about our quiz today.