Ответ:

I had have breakfast before I went to school.

He went to meet his friend after he had done his homework.

By 8 o'clock the rain had stopped.

Alice was late because she had missed the bus.

She went to the post-office after she had written the letter.

He had worked at the factory before he entered the college.

He got a bad mark for his test because he had made a lot of mistakes in it.

I went to bed after I had finished reading the book.

The child had fallen asleep before the parents came home.

They had married before they bought this house.