Question

1.     (two;five) of the land in that district     ( he) covered with trees and grass.

Answer 1

1.Two fifths,is表達(dá)分?jǐn)?shù)時分子用基數(shù)詞，分母用序數(shù)詞，分子大于1時，分母用復(fù)數(shù)。分?jǐn)?shù)和百分?jǐn)?shù)作主語時，謂語動詞的數(shù)取決于分?jǐn)?shù)和百分?jǐn)?shù)之后的名詞。land 是不可數(shù)名詞，所以謂語動詞用單數(shù)。