_____ is known to all that oil and water don’t mix up.A．ItB．WhatC．WhichD．As_刷题宝

题干

_____ is known to all that oil and water don’t mix up.

A．It

B．What

C．Which

D．As

上一题下一题 0.85难度单项选择更新时间:2010-06-25 04:40:57

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