摘要：--- Why did you go back upstairs? --- I thought I had left the window . A. open B. opened C. being opened D. to be opened
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— Why did you go back upstairs?
— I thought I had left the window ______.
— I thought I had left the window ______.
[ ]
A. open
B. opened
C. being opened
D. to be opened
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B. opened
C. being opened
D. to be opened