【題目】Did you know that the earth is home to ____ animals?

A. million B. millions C. million of D. millions of

【答案】D

【解析】

試題分析:句意為:你知道地球是數(shù)百萬(wàn)動(dòng)物的家園嗎?million與數(shù)字連用時(shí),表示確定的數(shù)目,要用單數(shù)形式;與of連用,表示不確定的數(shù)目,要用復(fù)數(shù)形式。所以要選D。

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