-Why?TOM,your shirt is so dirty!-Mom,i _my storeroom downs.
-Why?TOM,your shirt is so dirty!
-Mom,i _my storeroom downs.
Acleaned
Bhave cleaned
Cwas cleaning
Dhave been cleaning
为什么选D不选B,不都是有过去一段时间里打扫,对现在有影响吗?
人气：130 ℃ 时间：2019-11-09 11:22:21
解答
Dhave been cleaning
现在完成时表示的是过去的事情对现在所造成的影响
TOM的衣服脏了,所以用现在完成时
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