Use the most appropriate modal verbs (must, should, can, need, have to, be able) or their negative forms to complete the sentences

1. [ ] you help me please?
2. You
   [ ] do more sport if you want to lose weight.
3. You
   [ ] do your homework first if you want me to let you go out with your friends.
4. He has just broken his leg so he
   [ ] play football.
5. Drivers
   [ ] drive over the speed limit.
6. I had some problems repairing the roof by myself, but in the end I
   [ ] do it without help.
7. The test starts at 10.30. You
   [ ] be here until 10.15, but you can come earlier if you want.
8. The boss said that you
   [ ] let me use this computer.
9. You
   [ ] smoke so much: it's bad for health.