is more important isas the earth cooled down, water began to appear on its surface.A.What /thatB.Tha

题目简介

is more important isas the earth cooled down, water began to appear on its surface.A.What /thatB.Tha

题目详情

      is more important is      as the earth cooled down, water began to appear on its surface.
A.What /thatB.That/whatC.What / whatD.That / that
题型:单选题难度:中档来源:不详

答案

A
本题考查名词性从句。第一个空是一个缺少空语的主语从句,第二空是一个表语从句,表语从句又是一个as引导的时间状语从句。因此答案是A。

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