He is disappointed. He appears ____ what has happened to his competition.A．know_刷题宝

题干

He is disappointed. He appears ____ what has happened to his competition.

A．knowing	B．to know
C．having known	D．to have known

上一题下一题 0.64难度单项选择更新时间:2015-07-10 04:03:20

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