It is on 1st Sept. ________ students go back to school every year.A．whenB．thatC．_刷题宝

题干

It is on 1st Sept. ________ students go back to school every year.

A．when

B．that

C．who

D．what

上一题下一题 0.64难度单项选择更新时间:2013-04-20 12:34:46

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