You ___ be physically fit to be a fire-fighter.
have to
need
can
A doctor ___ often work long hours and night shifts.
can
must
can't
A teacher ___ look smart or wear a suit to work.
can't
mustn't
doesn't need to
Self-employed people ___ take a holiday any time they choose.
have to
can
need to
A journalist ___ write things which are not true.
mustn't
doesn't have to
needn't
Office workers usually ___ take many breaks during the day.
can't
needn't
don't have to
You ___ take a taxi. I can drive you to work.
mustn't
can't
needn't
Airline pilots ___ have excellent eyesight.
must
can
need
A: Is it a formal meeting? B: No, you must / don’t need to / can wear a tie.
don't need to
A: A: Can I smoke in here? B: I’m afraid not. You need to / needn’t / mustn’t smoke anywhere inside this building.
mustn't
A: What’s wrong? You look stressed. B: I am. I can / needn’t / have to finish all this work before the end of the week. There’s so much of it!
have to
A: Mr Long, I’d like to take a day off tomorrow. B: Sorry, I’m afraid you don’t need to / must / can’t .
can't
A: You look worried. What’s wrong? B: I have a meeting with my boss today. I needn’t / need to / don’t need to get to work on time. Otherwise, I’ll lose my job.
need to
A: Why can’t Sarah come with us? B: She mustn’t / has to / can prepare a presentation for her boss.
has to
A: Do I have to / Must I pay in cash? B: No, you needn’t / mustn’t pay in cash. Your credit card will be enough.
Do I have to/needn't
