We shouldn't have e north for Christmas vacation. If we _______, we wouldn't be stuck in the snow right now.A.wasn'tB.didn'tC.hadn'tD.weren't
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C解析考查虚拟语气。根据We shouldn't have e north for Christmas vacation（我们本不应该来北部过圣诞假期）可知，If we ——是对过去的虚拟，故选择C。完整的句子应当是If we hadn't e north for Christmas vacation.