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
D
解析:
现在完成进行时表示从过去某时到现在一直在进行的动作。

练习册系列答案
相关题目
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
D
现在完成进行时表示从过去某时到现在一直在进行的动作。