问题描述：
The plane shot down by the PLA men ______ to Beijing for exhibition last month
A．had brought B．was brought
C．had been brought D．brought
（为什么,难道不能是B吗?）
A．had brought B．was brought
C．had been brought D．brought
（为什么,难道不能是B吗?）
问题解答：
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