— Why? Tom, your shirt is so dirty! — Mum, I _____ my storeroom downstairs。 A．cleaned B．have worked...
2023-02-01 13:17:14 126次 2010届三轮回扣语法专项训练（动词时态和语态） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
— Why? Tom, your shirt is so dirty!
— Mum, I _____ my storeroom downstairs。
|
A．cleaned
|
B．have worked
|
C．was cleaning
|
D．have been cleaning
|
本题链接：
