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I can't go the the movie tonight because I _ study for the final exams.
must
mustn't
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Okay!
If you want to travel to certain countries, you _ get a visa.
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mustn't
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Okay!
When you first meet someone, you _ ask personal questions. For example, it's not polite to ask a person's age.
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mustn't
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The soup is too hot. You _ eat it yet. Wait for it to cool.
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mustn't
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you _ play loud music late at night. The neighbors will call the police.
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must
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Okay!
Everyone here _ leave immediately! the building is on fire.
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must
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Okay!
When the phone rings, you _ answer it.
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must
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Okay!
to be a successful climber, you _ have a great deal of stamina.
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must
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If you have an aquarium, you _ give your tropical fish too much food or they'll die.
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must
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Okay!
to stay alive, people _ breathe oxygen.
must
mustn't
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Okay!
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