1, D非谓语动词， 现在分词做原因状语。他真傻，他上班之前没锁门。已经有谓语动词was, Jack was really silly.是主句，其他动词就是非谓语，构成从句。如：Being badly ill, I have to stay at home. 身体不好，我不得不呆在家里。 （同样作原因状语）2，Ado justice 公平对待在他身体如此不好的时候说他懒对他不公平/不是在公平对待他。这是个主语从句，主语是动词不定式 to call him lazy when he's so illit 是形式主语， 主语太长，头重脚轻，所以用IT作形式主语。To call him lazy when he's so ill would not be doing him justice.
