Sentence 1: Mary was cooking dinner. 
 Sentence 3: She took a break, but was sick when she started again 
 Sentence 4:  She realized the zucchini smell reminded her of the dentist office 
 Sentence 5:  She wasn't able to eat zucchini for a decade afterwards 
 Option 1: She was chopping zucchini when she felt ill. 
 Option 2: Mary made herself pasta and started scarfing it down.