Using inversion:If it were to rain tomorrow, we’d have to stay a

Using inversion:
If it were to rain tomorrow, we’d have to stay at home playing poker.
【正确答案】：Were it to rain tomorrow, we’d have to stay at home playing poker.
【题目解析】：if引导的条件状语从句中谓语是should，were或had，则可以把should，were或had提前到句首从而省略了if，组成倒装句。