of the land in Jia Xing No. 1 Middle School covered with trees and grass.
A. Two third, are
B. Two thirds, are
C. Two third, is
D. Two thirds, is
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A. Two third, are
B. Two thirds, are
C. Two third, is
(答案→)D. Two thirds, is
解析：考查主谓一致。分数和百分数+ of +名词做主语时，谓语动词取决于of后面的名词，三分之二应表达为Two thirds，of后面的名词为the land，所以谓语动词应用单数形式，故选D。