A number of books ____kepts in the reading-room and ___of the students'time___spent there.
问题描述：
A number of books ____kepts in the reading-room and ___of the students'time___spent there.
A.are,threee-fourth,is B.is,three-fourths,are
C.are,three-fourths,is D.is,three-dourth,is
答
C 对.
a number of ‘ 许多’ ,作主语谓语动词要用复数,故排除B与D；
另外,分数的表达法：分子大于1时,分母要加S ,再排除A
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