20. Everyone who took part in the university snooze-fest was given some chocolate or an energy drink, and small cash prizes were —_________to the winner and the ruimer-up.
(A)rewarded
(B). awarded
(C)J forWaMed
(D). tdwkixi)' '

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統計： A(3), B(7), C(0), D(0), E(0) #1350076