1. Students mustn't / don't have to use their phones in classrooms. 2. I'll be late tomorrow. I mustn't / have to go to the doctor. 3. You worked all day. You must / can be tired. 4. Can / May you turn the volume down? 5. That may / has to be Sue's umbrella, but I'm not sure. 6. I can't / might go to the party but I haven't decided yet. 7. Sorry, I don't understand. I can't / don't have to speak Spanish. 8. In some countries, you have to / can have an identity card. 9. My father could / can play the violin by the time he was ten. 10. You can't / don't have to board the plane without a boarding pass. 11. This information can / might be correct. Please check it. 12. He can / could be French by the looks of his elegant suit. 13. You never know. Tomorrow can / could be a better day. 14. That can't / may be John at the door. He's in Milwaukee right now! 15. You don't have to / shouldn't have so much ice cream. It's not good for you.
1. Students mustn't use their phones in classrooms. 2. I'll be late tomorrow. I have to go to the doctor. 3. You worked all day. You must be tired. 4. Can you turn the volume down? 5. That has to be Sue's umbrella, but I'm not sure. 6. I might go to the party but I haven't decided yet. 7. Sorry, I don't understand. I can't have to speak Spanish. 8. In some countries, you have to have an identity card. 9. My father could play the violin by the time he was ten. 10. You can't have to board the plane without a boarding pass. 11. This information might be correct. Please check it. 12. He can be French by the looks of his elegant suit. 13. You never know. Tomorrow can be a better day. 14. That can't be John at the door. He's in Milwaukee right now! 15. You shouldn't have so much ice cream. It's not good for you.
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