问题补充:
of the land in that districtcovered with trees and grass.
A. Two fifth;is
B. Two fifth;are
C. Two fifths;is
D. Two fifths;are
答案:
A. Two fifth;is
B. Two fifth;are
(答案→)C. Two fifths;is
D. Two fifths;are
解析:分数的分子用基数词,分母用序数表示。如果分子大于1,序数词后加s。分数和百分比作主语时,谓语动词的形取决于分数和百分比后的名词。句子中的主语land是单数,谓语动词要用is covered。