Sentence 1: Cal was working hard in his yard all day. 
 Sentence 3: Cal began to feel incredibly light-headed 
 Sentence 4:  He realized he was about to suffer a heat stroke 
 Sentence 5:  Cal quickly got into the shade 
 Option 1: It was an exceptionally warm July. 
 Option 2: He always had the most beautiful landscape and spent every day out there.