【題目】______of the earth is covered with water.

A. three fourth

B.threes fourths

C.three fourths

【答案】C

【解析】

試題分析：句意：四分之三的地球表面被水覆蓋。在英語中的分?jǐn)?shù)，分子常用基數(shù)詞，分母常用序數(shù)詞，當(dāng)分子大于一時，分母要用復(fù)數(shù)形式。所以選C。

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