Sentence 1: Naomi liked to water ski during the summer. 
 Sentence 3: The water level of the lake dropped precipitously 
 Sentence 4:  The water was so low that it was not safe for ski boats 
 Sentence 5:  Naomi was unable to water ski until the next summer 
 Option 1: One summer there was a severe drought. 
 Option 2: One summer there was a lot of rain.