Answer :

1 is broke and painting,2 is passed and studied, 3 is did Mary work and retired,4 is walked and bumped,5 is shined,sang, and drove.finally, 6 is finished,waited, and rang
1. Paul broke his arm while he painted the wall. 

2. Sandra finally passed the exam. She studied really hard for months. 

3. A. How long did Mary work here before she retired? 

4. While I walked home last night, I bumped into Sally.

5. The sun shined and the birds sang as we drove. 

6. We finished the main course and waited for dessert when the fire alarm rang.