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YOU LOOKED VERY BUSY WHEN I SAW YOU LAST NIGHT. WH...
YOU LOOKED VERY BUSY WHEN I SAW YOU LAST NIGHT. WHAT ____ YOU____
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14. You looked very busy when I saw you last night. What ____ you____?
A. were___ doing
B. had ___ done
C. are ___ doing
D. have___ done
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14.
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File thứ 3: anh10ctmoi_151120177