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

A.million B.millions C.million ofD.millions of

【答案】D

【解析】

考查與數(shù)量有關(guān)的名詞、代詞和限定詞。句意: 你知道地球是幾百萬動物的家園嗎?millions of是固定搭配,“幾百萬的”;數(shù)詞+million,表示具體的……百萬,此時(shí)million是單數(shù)形式;空前沒有具體數(shù)詞,因此用millions of。故選D

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