How long ______ we take part in the college entrance examination?A．is it sinceB_刷题宝

题干

How long ______ we take part in the college entrance examination?

A．is it since

B．will it be before

C．is it when

D．will it be since

上一题下一题 0.64难度单项选择更新时间:2013-11-05 02:50:18

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