[ Grammar ]
Unless he shows, we have to close up the shop.
A. complex sentence
B. NOT a complex sentence

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Quantifiers and Articles › ViewThere isn’t ……….. furniture in the room. It’s empty.
A. a
B. an
C. some
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Don’t sit … the grass.
A. in
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C. at
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A. exceptionally
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They haven’t visited us ____________________ Christmas.
A. For
B. Since
