填空题Some people do believe that smoking will (certain) ____ cause lung cancer.

填空题
Some people do believe that smoking will (certain) ____ cause lung cancer.

参考解析

解析:
本题考查词性转换。句意:一些人相信吸烟确实能导致肺癌。原句不缺少成分,故此处应为副词,因此填入certain的副词形式certainly,表示“无疑地、确定地”。

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