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The population of our country is now more than three times what为什么用what
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The population of our country is now more than three times what为什么用what
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答案和解析
名词性从句(主语、宾语、表语、同位语从句）的主语、宾语、表语都用what.is后是表语从句,全句应是what it used to be ,what在从句中作be的表语.
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