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与将来事实相反的虚拟语气 请看下面的题目： If we __________ 200 years old，we __________ everything. A. were to be，could change B. had been，changed http://yingyu.chazidian.com C. were，would have changed D. should be，changed 此题应选A。该题考查与将来事实相反的虚拟语气，此时的主句谓语通常用would(should，could，might)＋动词原形，而从句谓语可能有以下几种情况： 1. 从句谓语用过去式： If your father knew this，he would be angry. 要是你父亲知道了，他会生气的。 If it rained tomorrow，the sports meet would beput off. 要是明天下雨，运动会就推迟。 2. 从句谓语用should+动词原形(通常指可能性极小的事情，一般译为“万一”)： If it should rain，the crops would be saved. 要是有雨，这庄稼还有救。 此类句型的主句谓语有时可以用祈使句甚至将来时态： | 
