К предложению написать общий вопрос, краткий ответ, спец.вопрос.- Tiny caught a big fish last sum

1 when Tiny caught a big fish?   in  last summer 2 when  Jim and Jill had a picnic? in  last summer 3 when Mag was in London?  on last week   или    a week ago 4 when  The children were in the contry? yesterday