Usually I don't allow________in my office，but yesterday I allowed him________ he

题干

Usually I don't allow________in my office，but yesterday I allowed him________ here.

A．smoking；to smoke	B．smoking；smoking
C．to smoke；smoking	D．to smoke；to smoke

上一题下一题 0.85难度单项选择更新时间:2014-06-16 06:32:09

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