英语倒装问题
问题描述：
英语倒装问题
____that they fulfilled the plan ahead of schedule.A.So fast they worked.B.So fast did they work.倒装怎么判断加不加did
答
应该选A,实际上就是一个状语提前的问题.也可以说 They worked so fast that they fulfilled the plan ahead of schedule.