—How long will it be ________ the 30th Olympic Games is held in London? —It won’

题干

—How long will it be ________ the 30th Olympic Games is held in London?
—It won’t be two years, I think.

A．when

B．that

C．before

D．since

上一题下一题 0.85难度单项选择更新时间:2011-12-09 10:20:57

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