1. Being able to afford ______ drink would be ______ comfort in those tough times.
A. the; the
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B. a; a
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C. a; /
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D. /; a
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2. The Harry Potter books are quite popular; they are in great ______ in this city.
A. quality
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B. progress
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C. production
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D. demand
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3. It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ______.
A. symptom
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B. similarity
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C. sample
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D. shadow
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