Question

Linda，are you going to see Peter off tomorrow？ __

Linda，are you going to see Peter off tomorrow？
_____ the day after tomorrow，I would go。
A，had he left
B，were he to leave
C，if he would leave
D，if he were about to leave

Answer 1

选B
句子意思：琳达，明天你会去给彼特送行吗？ 要是他后天走的话，我就去送。
从意思判断，虚拟语气的内容是跟将来事实相反，主句用would do， if 从句后面用should do , were to do或者过去式形式，所以排除CD（它们都是将来时，但规则是主句用将来时，从句用现在时代替将来时，也就是平时说的“主将从现”）
其次，当if条件句后有were，should，had （done）的话，可以把这三个词提前，省略if，构成倒装句结构，所以答案选B （A的时态不对，它是跟过去事实相反的），B选项就等If he were to leave,再如
If I were you , I would go =Were I you, I would go

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