_____ we were worried about was _______ they could manage to control the polluti
题型：不详难度：来源：
_____ we were worried about was _______ they could manage to control the pollution.| A．That; how | B．That; whether | | C．What; that | D．What; whether |
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答案
| C |
解析
这题考查名词性从句的用法,what引导的是主语从句，what在主语从句中做宾语，that引导表语从句，在从句中不做成分。句意是：我们担心的是,是否他们能设法控制祝污染。 |
举一反三
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