of the land in that district covered with trees and grass.A. Two fifth；isB. Two fifth；areC

问题补充：

of the land in that district covered 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：考查分数表达法和主谓一致。5份之2应该是two fifths,排除AB；当分数，百分数作主语时，谓语动词的单复数根据后面的名词，后面如果是可数名词复数，谓语动词用复数。如果后面是不可数名词，谓语动词用单数。故C正确。