Давайте разберем каждое предложение и заполним пропуски необходимыми формами глаголов в Past Simple или Past Continuous:
Paul got dressed, had breakfast and then went to the school. He was writing a letter when the lights went out.
Were you watching the film when the phone rang?
While you were out, the postman came and delivered these letters. Were the children studying while their nanny was preparing dinner?
- What happened to you? - I was driving to work.
The baby was sleeping when grandpa arrived.
I passed the exam without difficulty.
В данной задаче, изложенной в Past Simple и Past Continuous, исправлены грамматические ошибки и подобраны правильные формы глаголов для точного описания действий в прошедшем времени.