We ______ carefully but _______ nothing.A．listened; heardB．heard; listenedC．list

题干

We ______ carefully but _______ nothing.

A．listened; heard	B．heard; listened
C．listened; listened	D．heard; heard

上一题下一题 0.94难度单项选择更新时间:2017-08-24 10:03:42

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