1. 
James ran at 1 o'clock. He stretched at 2 o'clock. 


James had stretched when he ran at 1 o'clock. 


James had already run when he stretched at 2 o'clock. 



2. 
Gerry played badminton for an hour. After that he ate lunch. 


Gerry had played badminton for an hour before he ate lunch. 


Gerry had eaten lunch when he played badminton for an hour. 



3. 
Hannah waited for the train for an hour. When it arrived, she boarded the train. 


Hannah had boarded the train when it arrived. 


Hannah had waited for an hour when the train arrived. 



4. 
Nancy arrived at her car. She did not have her keys. She lost them before she got to the car. 


Nancy had lost her keys before she got to the car. 


Nancy had arrived at the car before she lost her keys. 



5. 
Jennifer wrote three books. She turned 21 after she wrote her third book. 


Jennifer had turned 21 before she wrote three books. 


Jennifer had written three books before she turned 21. 



6. 
Francis called Jacob. After the fifth time she called, he returned her call. 


Jacob had returned Francis' call before Francis called five times. 


Francis had called five times before Jacob returned her call. 



7. 
Peggy practiced her speech five times. Then, she gave her presentation. 


Peggy had practiced her speech five times before she gave her presentation. 


Peggy had given her speech five times before she practiced her presentation. 



8. 
Charmaine lived in her house for 15 years, and then she sold it. 


Charmaine had sold her house when she lived in it for 15 years. 


Charmaine had lived in her house for 15 years when she sold it. 



9. 
Jeremy called his mother many times, but he received a busy signal. Finally, he talked to his mother after 30 minutes. 


Jeremy had talked to his mother for 30 minutes when he received a busy signal. 


Jeremy had called his mother many times before he finally talked to her. 



10. 
Karen dated many men. Then she met Andrew. They are married now. 


Karen had married Andrew when she dated many men. 


Karen had dated many men before she met and married Andrew. 