my mother is busy ---- the room.A,clean B.to ciean C,cleanin

问题描述:

my mother is busy ____ the room.A,clean B.to ciean C,cleaning D,cleans
1个回答 分类:英语 2014-10-21

问题解答:

我来补答
选C.be busy doing 有这个短语.
 
 
展开全文阅读
剩余:2000