Question

1)отрицательная
2) вопросиьельная форма
They were there 10 minutes ago

They came home an hour ago

Answer 1

1) they weren't there 10m ago
They didn't come home hour ago
2) were they there 10m ago?
Did they come home hour ago?

Answer 2

1)They werent there 10 minutes ago.
Were they there 10 minutes ago.
2)They didnt come home an hour ago.
Did they come home an hour ago