Choose the correct modal verb

Please be quiet. I .............. hear the teacher.
1. mustn't
2. can't
3. shouldn't
Peter goes to bed early. You ............ call him after 9.00 pm.
1. can
2. must
3. mustn't
How far ................ you throw a ball?
1. can
2. should
3. must
Athletes ............... wear good shoes.
1. should
2. shouldn't
3. can