Sentence 1: Jill heard the school bus approaching as she walked to the bus stop. 
 Sentence 3: Jill saw the bus pull away as she reached the stop 
 Sentence 4:  Jill ran to the street and waved her arms 
 Sentence 5:  The bus stopped for Jill 
 Option 1: She slowed her walking, hoping to miss the bus. 
 Option 2: She hurried her walking.