The window which hasn't been cleaned for at least 3 weeks re

问题描述：

The window which hasn't been cleaned for at least 3 weeks requires ______
A.to clean B.cleaning C.cleaned D.being cleaned
说明原因
1个回答 分类：英语 2014-12-03

问题解答：

我来补答
B cleaning
require/need/want 加动名词,可以主动表被动
例如：
Your hair wants cutting.　你的头发该理了.
The floor requires washing.地板需要冲洗.
若对您有所帮助,
 
 
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