She walked home by herself at night, _____ she knew that it was dangerous.A．once_刷题宝

题干

She walked home by herself at night, _____ she knew that it was dangerous.

A．once

B．as

C．unless

D．although

上一题下一题 0.64难度单项选择更新时间:2012-07-10 08:14:22

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