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

问题描述:

-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?

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