(2013·武威模拟)I have learned from my bitter experience　　　we don’t knowwe’ve got unt

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(2013·武威模拟)I have learned from my bitter experience　　　we don’t know
we’ve got until it’s gone.

A．that; that	B．what; what
C．that; what	D．which; that

上一题下一题 0.64难度单项选择更新时间:2014-03-19 03:32:34

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