问题描述：
They went from door to door to collect money.
A.From the door to another door
b.from door to door
c.from the door to the door
d.from this door to that door 为什么在选择题中选B,而不是其他三个
A.From the door to another door
b.from door to door
c.from the door to the door
d.from this door to that door 为什么在选择题中选B,而不是其他三个
问题解答：
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