问题
选择题
I didn't see Laura at the party last night. Do you know _______? [ ]
A. why didn't she come
B. what happened
C. when would she arrive
D. where she has been
答案
答案：B
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I didn't see Laura at the party last night. Do you know _______? [ ]
A. why didn't she come
B. what happened
C. when would she arrive
D. where she has been
答案：B