Sentence 1: Jamie was working on her computer when something bit her leg. 
 Sentence 3: Jamie chased the mosquito around for awhile and eventually killed it 
 Sentence 4:  She did not appreciate that distraction 
 Sentence 5:  She decided to close the window before getting back to work 
 Option 1: She was too lazy to check what it was. 
 Option 2: She got up to investigate and found a mosquito flying around her head.