1. The lesson had started before my classmates came.
2. when I finished writing my answers no one had left in the classroom.
3. My classmates hadn't forgotten to call me before they came to take me.
4. Teachers had announced exam results when my group mates didn't come.
5. Before I called my classmates they had entered to lesson.
1. The lesson had started before my classmates came.
2. when I finished writing my answers no one had left in the classroom.
3. My classmates hadn't forgotten to call me before they came to take me.
4. Teachers had announced exam results when my group mates didn't come.
5. Before I called my classmates they had entered to lesson.