5. A year ago my family and I travel together to Italy. We help one family on their farm and live there for free.

1. A year ago my family and I travelled together to Italy. (travelled – правильная форма глагола travel в Past Simple)
2. We helped one family on their farm and lived there for free. (helped – правильная форма глагола help в Past Simple, lived – правильная форма глагола live в Past Simple)

Ответ: travelled, helped, lived