[ Modal Auxiliary Verbs ]
He ______ (should / must) apologize for his rude behavior.
A. should
B. must

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A : I get up at 5.30.
A. Who
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Camping equipment and garden furniture are …… sale at our store this month. So get ready for summer!
A. at
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___________ the socks?
A. Where is
B. Where are
