5 The speech became ________ after a while, so most audience fell asleep.
(A) momentous
(B) murmuring
(C) monotonous
(D) monopolizing
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統計: A(19), B(78), C(210), D(35), E(0) #2771170
統計: A(19), B(78), C(210), D(35), E(0) #2771170