______ of his time ______ been spent on studies every day. A．Four-fifths; has B．Four-fifths.
______ofhistime______beenspentonstudieseveryday.A．Four-fifths;hasB．Four-fifths;haveC．...
______ of his time ______ been spent on studies every day. A．Four-fifths; has B．Four-fifths; have C．Four-five; has D．Fourths-five; have
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| A |
| 英语分数表达法，分子读坐基数词，分母读做序数词。如果分子是一，则分母直接读做序数词；如果分母大于一，则序数词要加s变成复数。主语为抽象名词,谓语动词用第三人称单数形式,故选A. |
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