2. I got to my desk while others students were reading the article in the book.
3. Everybody finished reading while I was looking for my book in the schoolbag.
4. I had found my book when everybody finished the article.
5. I finished the article while the teacher was explaining something.
6. The teacher gave us a written exercise while I was looking for my pen.
7. The teacher collected the work when I hadn't finished.
8. My classmates went home while I was doing the work.
sper ca e bine:)
