[ Modal Verbs - Obligation ]
You …………. go now; you can stay a bit longer.
A. don’t have to
B. mustn’t

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____________ louder. The audience cannot hear you.
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Modals of Obligation and Permission › View
My father ……………………………… buy groceries for the family every day.
A. doesn’t need to
B. doesn’t have to
C. must
D. needs to
