Помогите
Сделать правильно и раскрыть скобки. Прошедшее или настоящее время.
И написать к какому оно относиться. (present simple, present perfect и т.д.)

1)They (build) their house in 1995
2) When i came hpme my dod (already) go to work.
3)They (build) the house by winter last year.
4) While we (watch) the birds, we (hear) a strange noise.
5) I could not find my umbrella somebody.
6) I was busy all last month I (wark) on my report.

1)Built- past simple2)Had already gone - past perfect3)Built - past simple4)Were watching- past continuous , heard - past simple6) was working - past continuous