____ is known to everybody, the moon travels round the earth.A．AsB．ItC．WhenD．Whe_刷题宝

题干

____ is known to everybody, the moon travels round the earth.

A．As

B．It

C．When

D．Where

上一题下一题 0.64难度单项选择更新时间:2013-06-21 08:52:51

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