[ Grammar ]
While I ________ the floor, Mrs. Paker began cooking.
A. swept
B. was sweeping
C. has swept
D. has been sweeping

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General Knowledge › ViewIn which century was the Black Death?
A. Thirtheenth
B. Fourteenth
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Which word means “immature and overconfident; conceited”?
A. Sophomoric
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C. doesn’t she
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They aren’t____________.
A. swim
B. swimming
C. swiming
