虚拟语气的表达 If a neighbour did not acted quickly,the fire would not have spread to other floors

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虚拟语气的表达 If a neighbour did not acted quickly,the fire would not have spread to other floors

虚拟语气的表达 If a neighbour did not acted quickly,the fire would not have spread to other floors
虚拟语气的表达 If a neighbour did not acted quickly,the fire would not have spread to other floors

虚拟语气的表达 If a neighbour did not acted quickly,the fire would not have spread to other floors
If a neighbour had not acted quickly,the fire would not have spread to other floors

虚拟过去的情况
If 引导的条件从句用过去完成时(had done),主句用would/should /could/might加完成时(have done)
虚拟现在的情况
If 引导的条件从句用过去时(did),主句用would/should /could/might加动词(原型)
虚拟未来的情况
If 引导的条件从句用were to/should(Sho...

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虚拟过去的情况
If 引导的条件从句用过去完成时(had done),主句用would/should /could/might加完成时(have done)
虚拟现在的情况
If 引导的条件从句用过去时(did),主句用would/should /could/might加动词(原型)
虚拟未来的情况
If 引导的条件从句用were to/should(Should I.../If I should...)/过去时(did),主句用would/should /could/might加动词(原型)

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