Ответ:
1) I went to see my friend, but she (be) ____ on holiday.
was
2) The exercises were very difficult, nobody (know) ____ what to do with them.
knew
3)I paid for the window because my son (break) ____ it.
had broken
4)Everybody (leave) ____ the house by the time I came home.
had left
5)She (finish) ____ breakfast and left the house.
finished
Объяснение: