permission / prohibition / obligation b1.8

(Notice on a train) Quiet carriage. Passengers _____ play music or talk on the phone in this part of the train. A. can't B. must not C. don't have to

We ___ be there fifteen minutes before the concert starts. A. have to B. can

(Parent to child) You _____ do your homework before watching television. A. must B. can C. could

You ___ come to the meeting but it would help us all if you’re there. A. are allowed not to B. mustn't

In the UK you can leave a tip in the pub if you want, but you _____. A. mustn't B. couldn't C. don't have to

_____ go to the party? I'm really tired. A. ?Do we have to B. ?Can we C. ?Can't we

You ___ start saving money if you want to retire early. A. can B. have to

Did they tell you that you ___ come into this area. It’s restricted to staff only. A. can't B. don't have to

I _____ forget to take my library books back on the way home. A. mustn't B. don't have to C. have to

I'll _____ wear the black dress tonight. The invitation said formal clothes. A. can B. have to C. mustn't

You _____ rent a car without a credit card. A. don't have to B. mustn't C. can't

I _____ forget to take my library books back on the way home. A. mustn't B. don't have to C. have to

There’s a lot of noise coming from outside. ___ I close the window? A. Must B. Could

I can’t get a connection on my phone. ___ I borrow yours? A. have to B. can

I ___ stay on for a few hours because I’d rather work late today than over the weekend. A. must B. have to

The rules say that you ___ only invite one guest to the club. A. have to B. are allowed to