They left the school and ran after the old man.(改为否定句)

问题描述:

They left the school and ran after the old man.(改为否定句)

They didn't leave school or run after the old man .

They didn't leave the school and run after the old man.

They didn't leave the school and ran after the old man .
翻译:他们没有离开学校并跟踪那个老人.