It is thought that one billion people in the world,_____ is half the world’s wor
题型：不详难度：来源：
| It is thought that one billion people in the world,_____ is half the world’s workers, earn their living by farming. |
答案
| B |
解析
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 |
举一反三
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