问题
选择题
—Lu does work hard.
—Yeah. _____ of his time ______been spent on studies every day.
A．Four-fifths; has
B．Four-fifths; have
C．Four-five; has
D．Fourths-five; have
答案
答案：A
题目分析：句意：---Lu工作努力。---是的，每一天他把五分之四的时间花在学习上。五分之四，分子用基数词，分母用序数词，分子大于一，分母要加-s。名词前有分数修饰时，谓语动词的单复数形式要看分数后的名词而定。time时间，不可数名词，故用has。故选A。