【題目】About ______ of the land ______ covered with trees and grass.
A.three fifths; is
B.three fifths; are
C.three fifth; are

【答案】A
【解析】句意:大約五分之三的土地被樹(shù)木和草地覆蓋。分?jǐn)?shù)的分子寫(xiě)在前面,用基數(shù)詞,分母寫(xiě)在分子的后面,用序數(shù)詞。當(dāng)分子是1時(shí),分母用單數(shù),分子大于1時(shí),分母用復(fù)數(shù)。一個(gè)分?jǐn)?shù)作主語(yǔ)時(shí),謂語(yǔ)的單、復(fù)數(shù)與分?jǐn)?shù)所實(shí)際指的人或物的數(shù)相一致。本題中l(wèi)and是不可數(shù)名詞,作主語(yǔ),謂語(yǔ)用三人稱單數(shù)。故選A。

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