-Why?TOM,your shirt is so dirty!-Mom,i -my storeroom downs.

-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?