Помогите избрать правильные глаголы!!!a) 1. Jeff (can /can039;t) play the guitar,

Помогите избрать правильные глаголы!!!
a) 1. Jeff (can /can't) play the guitar, but he wants to learn.
2. You (may not /shouldn't) eat chips every day. It's not good for you.
3. Mum, (can / should) I borrow some money from you?
4. You (mustn't /don't) have to come if you don't want to.
5. Look at the sign. You (don't have to /mustn't park) here.
b)
1. Kerry (should/may) work harder if she wants to pass the exam.
2. You (can/have to) train every day if you want to be in the school hockey team.
3. You (mustn't/don't have) to use your mobile phone on a plane. It isn't permitted.
4. Sylvia is very artistic. She (can/may) paint very well, and she writes poetry too.
5. Ian (doesn't have to / mustn't) help at home, but he usually does some cooking.
6. Bill (shouldn't/can't) play basketball, but he's going to learn next year.
7. Students (may/must) use the library after school this week if they want to.
8. You (don't have to/shouldn't) go to bed so late - I'm not surprised you're tired!