___has been done.
A.nety-nine percents of the works B.half of what he promised
C.two-fifths of the articles D.three quarter of the business
为什么选B
人气：298 ℃ 时间：2020-05-15 04:45:56
解答
首先像half这种数量级词总要放在最前面,
然后这里的what he promised 作为一个主语从句来用.
所以相比较而言其它的句子就缺少主语
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