it's urgent that a meeting _before the final decision is made .

问题描述:

it's urgent that a meeting _before the final decision is made .
A must be arranged B be arranged
为什么选B不选A呢?

it's urgent that a meeting (should) be arranged before the final decision is made .(省略should的虚拟语气)那这句话怎么翻译呢?请你帮忙说说。谢谢了。在最终决定作出前,安排一个会议是当务之急。