◎ 题干
_____ we were worried about was _____ they could manage to control the pollution.


A. That; how

B. That; whether
C. What; that
D. What; whether
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“_____ we were worried about was _____ they could manage to control the pollution. [ ]A. That; how B. That; whetherC. What; that D. What; whether …”主要考查了你对  【连接代词】【从属连词】【主语从句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。