问题补充:
of the land in that district covered with trees and grass.
A. Two fifths;is
B. Two fifth;are
C. Two fifth;is
D. Two fifths;are
答案:
(答案→)A. Two fifths;is
B. Two fifth;are
C. Two fifth;is
D. Two fifths;are
解析:本题的主语是land,为不可数名词,之后的be动词应该用is,分数的表示法为基数词+序数词,当基数词大于1时,序数词应使用副词,故本题选A。