Конечно! Давайте разберем ваши предложения, используя правильные формы глаголов в Past Simple и Past Continuous.
When I saw Tom, he was reading a book.
While the father was sleeping, we were cooking the cake for him.
When I met Ann, she was sorting the flowers.
Yesterday we broke mum's favourite vase.
Max played the piano all the evening yesterday.
The pupils were writing an essay while the teacher was checking their works.
He learned the poem and then decorated the room.
Теперь вы видите, как использовать Past Simple для завершенных действий и Past Continuous для действий, которые были в процессе. Если у вас есть дополнительные вопросы или нужно больше примеров, не стесняйтесь обращаться!