--- May I speak to Mr. Smith？--- I am afraid not. He is at a meeting now. It's n

题干

--- May I speak to Mr. Smith？
--- I am afraid not. He is at a meeting now. It's not _____________

A．reliable	B．convenient
C．beneficial	D．available

上一题下一题 0.64难度单项选择更新时间:2014-03-24 11:37:40

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