问题
选择题
We do not permit _________ in the office.
A．to smoke
B．to smoking
C．for smoking
D．smoking
答案
D
考察permit的用法, permit sb. to do sth. 允许某人做某事permit doing sth. 允许做某事根据题意我们不许再办公室内吸烟,选D.
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