问题
选择题
I don't remember ______ the boy by himself. [ ]
A. why did she leave
B. why she left
C. why had she left
D. why she had left
答案
答案：B
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I don't remember ______ the boy by himself. [ ]
A. why did she leave
B. why she left
C. why had she left
D. why she had left
答案：B
