Question

     of the juice        orange. It’s very pure.

A．Fourth five, are

B．Four fifths , are

C．Fourth five, is

D．Four fifths, is

Answer 1

D

解析试题分析：句意：橘汁的五分之四是橘子。它非常纯正。分数的表达为分子用基数词，分母用序数词，当分子大于一时，分母的序数词用复数形式；又因juice为不可数名词，故谓语动词用单数形式；故选D。
考点：考查分数和主谓一致。