根据网考网考试中心的统计分析，以下试题在2019/1/24日托业考试习题练习中，答错率较高，为：89%
【单选题】We will be welcoming our keynote ______ at a reception to be given in the Emerald Room, which is located on the mezzanine, at 8:00 p.m.
A．speak
B．spoken
C．speaker
D．speaking
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