A few species of mushrooms cause death or serious illness______.

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问题 A few species of mushrooms cause death or serious illness______.

选项 A、having eaten
B、that they are eaten
C、are eaten
D、when eaten

答案D

解析 句意:一些种类的蘑菇若被食用就会导致死亡或重大疾病。状语从句的省略结构。省略条件:1.特定的状语从句引导词:although,though,even though,if,when,while,as,whether;2.从句为主系表结构;3.从句主语和主句主语一致。省略方式:同时省略主语和系动词。该状语从句完整形式为when they are eaten,因满足以上条件,省略主语和系动词,变为省略结构when eaten,故答案为D。
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