If the whole operation ______ beforehand, a great deal of time and money would have been lost.

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问题 If the whole operation ______ beforehand, a great deal of time and money would have been lost.

选项 A、was not planned
B、has not been planned
C、had not been planned
D、were not planned

答案C

解析

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C类竞赛（非英语专业本科）

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