题目内容
【题目】_______ of the students _______ cleaning the windows now. The others are sweeping the floor.
A.Two fifths; are
B.Two fifths; is
C.Two fifth; is
D.Two fifth; are
【答案】A
【解析】句意:五分之二的学生现在在擦窗户,其他的在扫地。第一空考查分数的表达:分子用基数词,分母用序数词,分子大于一,分母加-s,所以CD错误;主语是students,谓语用复数,所以答案是A。

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