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The number of chairs in the room __ ten. I’m afraid a number of chairs in the room ___ lost.
A.is; isB.is; areC.are; isD.are; are
B
此题重点考查the number of/a number of 的区别。它们修饰名词作主语时,谓语的数是不一样的。(1)a number of为量词短语,表示“许多……”,中心词是这个短语所修饰的复数名词,所以作主语时,谓语动词用复数形式。(2)the number of表示“……的数量”,中心词为number,指的是of后边名词的数量,数量是个抽象概念,因此谓语动词用单数。
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