It was essential that all the equipment______back before the factory went into o

游客2023-11-07 45

问题 It was essential that all the equipment______back before the factory went into operation.

选项 A、be sent
B、must be sent
C、were sent
D、would be sent

答案 A

解析

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______,herealizedhemadetherightdecision.A、BeforelongB、LongbeforeC、Aft