I had been looking for the book for two days _______ I found it at last.A． until_刷题宝

题干

I had been looking for the book for two days _______ I found it at last.

A． until

B． when

C． while

D．before

上一题下一题 0.64难度单项选择更新时间:2013-11-07 04:42:47

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