of the land in my hometowncovered with trees and grass.A. Two fifth ; isB. Two fifth ; ar

问题补充：

of the land in my hometowncovered 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：考查分数表达法与主谓一致：句意：我家乡三分之一的土地都是被树草覆盖着。英语分数表达法是分子用基数词，分母用序数词；分子大于 1 时分母用序数词的复数。分数做主语，谓语动词与分数后面of 所接的名词保持一致，the land 是单数，故答案为C。