Choose the correct forms, don039;t have to, mustn039;t, to comlete the

Choose the correct forms, don't have to, mustn't, to comlete the sentences below/
1)you ___________ apologise; it isn't necessary.
2) You ___________ tell the boss what happened, or he'll fire you.
3) I ___________ wear a tie; I do it because i like wearing ties.
4)You____________ smoke in here; smoking is not allowed.
5) I ___________ be late. It's the most important meeting of the year.
6)You ____________ go now; you can stay a bit longer.
7) Visitors to the zoo ___________ feed the animals.
8) You ______________ drive so fast; we have a lot of time.
9) We ______________ cook more; there's enough food.
10) You ___________ put salt in her food; the doctor said she can't eat salt.