Mark these sentences: true or false.1. Your cllassmates don*t have to get up early on Sunndays.3. You mustn*t learn German.4. Your friends will have to take exams next.5. Your teacher mustn*t check your homework today.6. Old pe...

Mark these sentences: true or false. 1. Your cllassmates don*t have to get up early on Sunndays. 3. You mustn*t learn German. 4. Your friends will have to take exams next. 5. Your teacher mustn*t check your homework today. 6. Old people don*t have to work. 7. People have to walk their dogs.