1. Perhaps some light exercise could / must relieve the pain. 2. He fell asleep at his desk! He might / must have been exhausted. 3. Ann isn't here, She must / can't have forgotten. 4. You don't have to / shouldn't exercise when you don't feel well. 5. She's walking to school. She might / can't have missed the bus. 6. He can't / could have gone home. He's left his bag on the chair. 7. We mustn't / don't have to learn Chinese. 8. Tania's in Spain. You must / could have seen someone else.​

20051207маша    3   26.10.2020 12:51    2