Factor worker had to work very hard before,so had farmers.这句话中为什么so错

分类: 作业答案 • 2022-02-17 23:54:51

问题描述：

答

so 没有出错
前面 had to 表示不得不(过去)
所以后面表示“也一样”
应该写 so did farmers 而不是那过去完成时的 had