Ответ:
1.She doesn't have to revise for the test because she isn't studying geography.
2.We have to wear a uniform, but we can wear jeans on Fridays.
3.She has to get good marks because she wants to go to college.
4.They don't have to go to school today. It's a school holiday.
5. Does Alan have to play football after school?
6.His new school is really strict. He has to do his homework every evening, including Fridays.