12. The chairperson of the meeting asked everyone to speak up instead of ______ their opinions among themselves.
(A) reciting
(B) giggling
(C) murmuring
(D) whistling
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統計: A(0), B(0), C(0), D(1), E(0) #3354399
統計: A(0), B(0), C(0), D(1), E(0) #3354399