_________isknowntousallthattheea

发布时间：2020-07-25 11:23:34

_________ is known to us all that the earth is smaller than the sunA.ItB.WhatC.AsD.which

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A解析本题考查名词性从句。It在句中作形式主语，真正的主语为that the earth is smaller than the sun，故选A。
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