"My father lost a job last month."

Translation: 내 아버지가 지난달에 실직했어요.

[SigniorGratiano]

Does this not work with 지난달에 at the front?

[wintertriangles]

That would be fine at the front.

[PaulJones279857]

I've put 지난달에 at the front and it's been marked wrong. But it should be ok

[MatthewEpp5]

The English sounds unnatural. I think it should be, my father lost “his” job last month.