Rephrase the following sentences using must, mustn't, needn't, has to or doesn't have to.

1 You aren't allowed to park your car in the college car park.
2 I strongly advise you to speak to your parents about your decision.
3 It isn't necessary for Emma to attend tomorrow's staff meeting.
4 Jack is obliged to wear a suit and a tie at work because the manager says so.
5 I'm sure Antonio is from Milan.
6 It's necessary for Roger to find a job soon.
7 It's forbidden to use mobile phones inside the hospital.
8 Susan is obliged to work overtime because her boss says so.