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
___has been done.
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相关问题
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has been done 是has done的被动形式,可是为什么My mother has been devoted
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has been done 和has been 区别是什么
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来一位高手辨析一下这个英语区别has done had done has been done had been done
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All ___ can be done has been done.
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has been doing have been done区别
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有关英语语法have donehave been done has done had done这些属于什么?has/ha
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All which can be done has been done.
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all that can be done has been done
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has been doing还是 has done
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it has been done 谓语