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Modals of Obligation and Advice
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It isn’t a good idea to drink coffee before you go to bed. You ________ drink coffee before you go to bed.
shouln't
Oops!
Okay!
I think it’s really important for me to visit Gran tomorrow because it’s her birthday. I _______ visit Gran tomorrow because it’s her birthday.
must / have to
Oops!
Okay!
It isn’t necessary to pay to go into that museum – it’s free. You ______ pay to go into that museum – it’s free.
don't have to
Oops!
Okay!
It will be necessary to stay at the airport hotel because we’ve got an early flight. We _______ stay at the airport hotel because we’ve
have to / must
Oops!
Okay!
You aren’t allowed to ride a motorbike without a helmet. You _______ ride a motorbike without a helmet.
mustn't
Oops!
Okay!
It isn’t necessary to hurry – there’s plenty of time. We ______ to hurry – there’s plenty of time.
don't have to
Oops!
Okay!
Last week, it was necessary for me to go to the hospital for a check-up. Last week, I _______ go to the hospital for a check-up.
had to
Oops!
Okay!
I think it’s a good idea for us to buy a bigger car. We ______ buy a bigger car.
should
Oops!
Okay!
I think it’s really important for us to invite Bill and Donna for dinner soon. We ______ invite Bill and Donna for dinner soon.
must / have to
Oops!
Okay!
You aren’t allowed to use your phone in the library. You ________ use your phone in the library.
mustn't
Oops!
Okay!
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