a.Three fourths of the teachers present _____ against
the plan.
b.Three fourths of the surface of the earth ______
covered with water.
A.is B.are C.was D.were
为什么分别选B、A?
人气：160 ℃ 时间：2020-02-04 08:26:48
解答
teacher是可数名词,用分数形式表达后为复数形式,故用are
surface是不可数名词,用分数形式表达后为单数形式,故用is
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