[ Grammar ]
They aren’t answering the phone so they ___ out.
A. can’t be
B. must be
C. mustn’t be
Select your answer:

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Articles with Substances › ViewI don’t like ___ milk, but now I’d like to have it.
A. a
B. an
C. the
D. —
Adjective and Adverb › View
Handle the delicate vase ____________.
A. Gently
B. Gentle
