be+过去分词的用法This problem (should)be settled as soon as possibl

问题描述:

be+过去分词的用法
This problem (should)be settled as soon as possible中是用be(课本上说should 可以省略) ,the house was cleaned为什么不用be?而是用was?第一句中的be 为什么不用is
1个回答 分类:英语 2014-12-15

问题解答:

我来补答
should be 是一个整体,只不过此时should 可以省略.
再问: 那可以这样说吗?the house should be cleaned
再答: 能
 
 
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