[ Grammar ]
Tim ______ the violin when the doorbell rang.
A. were playing
B. was playing
C. playing

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Grammar › ViewAfter Nela___________ for twenty minutes, she began to feel tired.
A. jogging
B. had been jogging
C. has been jogging
D. has jogged
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Deanna is the _______ of the three sisters.
A. most short
B. shorter
C. shortest
D. more short
General Knowledge › ViewProtein that fills the cells of your hair is called keratin
A. True
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I live _____ an apartment _____ two American boys
A. in/of
B. at/with
C. in/with
D. of/with
