The human body consists of organs, each ____a definite job to do.

A．Have B．to have C．Has D．having

D

解析試題分析：考查獨(dú)立主格結(jié)構(gòu)。句意：人的身體由器官組成，每個都有一定的工作做。獨(dú)立主格結(jié)構(gòu)是由名詞+其它成分構(gòu)成，不是句子，但是作用相當(dāng)于句子。本題兩部分之間沒有連詞，說明后半部分不是句子，而是短語。排除AC。Each與have構(gòu)成主動關(guān)系，故使用現(xiàn)在分詞的形式。each having a definite job to do="and" each has a definite job to do.故D 正確。
考點(diǎn)：考查獨(dú)立主格結(jié)構(gòu)

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