—Have you known each other for long?—Not very long, ________ we started to work

题干

—Have you known each other for long?
—Not very long, ________ we started to work in the company.

A．after

B．before

C．when

D．since

上一题下一题 0.64难度单项选择更新时间:2013-03-25 08:51:24

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