[ Modal Auxiliary Verb ]
You look tired. You ___ go to bed.
A. Should
B. Ought
C. Are to

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Articles › ViewI’d like _______ orange and two lemons, please.
A. a
B. an
C. the
D. –
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That’s impossible, he … about her sweetie’s birthday. He’s such a thoughtful person.
A. mustn’t have forgotten
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A. eat
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He … taking a bath when you knocked on the door.
A. is
B. was
C. were
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