问题
选择题
—Why didn't Alice come to the party last night?
—I don't know ______. [ ]
A. why didn't she
B. why she didn't
C. why did she
D. why she did
答案
答案：B
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—Why didn't Alice come to the party last night?
—I don't know ______. [ ]
A. why didn't she
B. why she didn't
C. why did she
D. why she did
答案：B