A-A+
Ifthewholeoperation__________beforehand agreatdealoftimeandmoneywo
问题详情
Ifthewholeoperation__________beforehand,agreatdealoftimeandmoneywouldhavebeenlost.A.wasnotplanned
B.hasnotbeenplanned
C.hadnotbeenplanned
D.werenotplanned
请帮忙给出正确答案和分析,谢谢!