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

解析句意：如果没有提前计划好整个手术，就会浪费大量的时间和金钱。由后半句可知是对过去的虚拟，结构为“从句：if+过去完成时；主句：情态动词的过去分词+完成时”。故选C。

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考研英语一

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TheprofessortalkedtoAmericanandBrazilianstudentsaboutlatenessinbothaninformalandaformalsituation:lunchwitha

Theonsetofanewgenerationofcomputerattackswasmarkedby.NellBarrett’sremarksarequotedtoshow.

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