问题
选择题
Look at the sweat on her face. She________the house since she got up this morning.[ ]
A. is cleaning
B. has been cleaned
C. was cleaning
D. has been cleaning
答案
答案：D
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Look at the sweat on her face. She________the house since she got up this morning.[ ]
A. is cleaning
B. has been cleaned
C. was cleaning
D. has been cleaning
答案：D