Ifthewholeoperationbeforehand,agreatdealoftimeandmoneywouldhavebeenlostA.wasnotplannedB.hasnotbeenplannedC.hadnotbeenplannedD.werenotplannedC.在不同的情景中D也是可选的吧?如选D可理解为的却正要开

Question

If the whole operation __ beforehand,a great deal of time and money would have been lost
A.was not planned
B.has not been planned
C.had not been planned
D.were not planned
C .在不同的情景中D 也是可选的吧?如选D可理解为的却正要开始实施计划的时候的假设.

Answer 1

would have done是对过去的假设或猜测,从句一般要用过去完成式!