It is thought that one billion people in the world,_____ is half the world’s workers, earn their liv

题目简介

It is thought that one billion people in the world,_____ is half the world’s workers, earn their liv

题目详情

It is thought that one billion people in the world,_____ is half the world’s workers, earn their living by farming.
A.ifB.thatC.whichD.what
题型:单选题难度:偏易来源:不详

答案

B
句中“half the world’s workers”是对“one billion people in the world”的补充说明。“that is”是“that is to say”的省略说法
【标签】插入语和定语从句

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