I didn't know how the house————（catch）fire

来源：学生作业帮助网 编辑：作业帮 时间：2024/04/30 00:41:20
I didn't know how the house————（catch）fire

I didn't know how the house————（catch）fire
I didn't know how the house————（catch）fire

I didn't know how the house————（catch）fire
caught
catch的过去式
因为前面用的是didn't 过去式
前后一致