--- Why? Tom, your shirt is so dirty! --- Mum, I my storeroom downstairs.A. cleanedB. hav

发布时间：2020-08-15 00:35:34

--- Why? Tom, your shirt is so dirty!
--- Mum, I      my storeroom downstairs.
A. cleaned
B. have cleaned
C. was cleaning
D. have been cleaning

网友回答

A. cleaned
B. have cleaned
C. was cleaning
(答案→)D. have been cleaning
解析：由上下文语境推出一直在做某事，同时对现在产生影响，衬衫脏。
以上问题属网友观点，不代表本站立场，仅供参考！