Rewrite the given text in past tense.

On Monday we had five lessons. The first lesson began with a dictation and answers for exercises. Nick went to the blackboard and got 'five' because he did his lesson well. Pete did not get 'five' because he did not know his lesson. After the second lesson, we went to the canteen. I ate a sandwich and drank milk. After the third lesson, I went to the library and changed my books. Then I went home.