Since last year, she ______ of the long distance.A、have covered three fifthB、ha

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问题 Since last year, she ______ of the long distance.

选项 A、have covered three fifth
B、have covered three fifths
C、has covered three fifths
D、has covered three fifth

答案 C

解析本题考查分数的用法和主谓一致。本句是现在完成时，因主语是第三人称单数，故用has；分数由基数词作分子，序数词作分母构成，分子若大于1，分母用复数形式。

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