A-A+
On the evening the author fell over someone _
问题详情
On the evening the author fell over, someone ______.
A．had moved his card index
B．had been playing card games
C．had knocked over his boxes containing cards
D．had looked at his collection of diamonds此题为多项选择题。请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：根据第4段I tripped over a nine of diamonds which someone had left lying on the floor，可见B正确。
