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Must, musn't, have to, don't have to
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I ______________ wear a tie; I do it because I like wearing ties.
I DON'T HAVE TO wear a tie; I do it because I like wearing ties.
Oops!
Okay!
You __________ smoke in here; smoking is not allowed.
You MUSTN'T smoke in here; smoking is not allowed.
Oops!
Okay!
Teacher: 'You _____ arrive on time for class.'
Teacher: 'You HAVE TO / MUST arrive on time for class.'
Oops!
Okay!
You ____________ go now; you can stay a bit longer.
You DON'T HAVE TO go now; you can stay a bit longer.
Oops!
Okay!
We ___________ cook more; there's enough food.
We DON'T HAVE TO cook more; there's enough food.
Oops!
Okay!
You ____________ apologise; it isn't necessary.
You DON'T HAVE TO apologise; it isn't necessary.
Oops!
Okay!
You ______________ tell the boss what happened, or he'll fire you.
You MUSTN'T tell the boss what happened, or he'll fire you.
Oops!
Okay!
I ___________ be late. It's the most important meeting of the year.
I MUSTN'T be late. It's the most important meeting of the year.
Oops!
Okay!
You _______________ drive so fast; we have a lot of time.
You DON'T HAVE TO drive so fast; we have a lot of time.
Oops!
Okay!
You ______________ put salt in her food; the doctor said she can't eat salt.
You MUSTN'T put salt in her food; the doctor said she can't eat salt.
Oops!
Okay!
I _____ leave early because I wasn't feeling well
I HAD TO leave early because I wasn't feeling well
Oops!
Okay!
I don't like these clothes, but I _____ wear them at work.
I don't like these clothes, but I MUST / HAVE TO wear them at work.
Oops!
Okay!
Visitors to the zoo ______________ feed the animals.
Visitors to the zoo MUSTN'T feed the animals.
Oops!
Okay!
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