Past tenses revision

They were falling out / fell out / had fallen out with their brothers because they had lost / lost / were losing the book.

My brother was taking after / had taken after / took after my grandma in her kindness.

When I was / was being / had been in high school, most of my classmates used to pick on / had picked on / were picking on a boy called Tom

His cousin had talked him into / talked him into / was talking him into picked him up / picking him up / had picked him up after school last week.

When I had been / was / was being in a crisis I was depending on / depended / had depended on on my mum.

She was having / had/ had had difficulty in identifying with the main character.