Thoreau´s first question after prison

According to some accounts, Emerson visited Thoreau in jail and asked, “Henry, what are you doing in there?” Thoreau replied, “Waldo, the question is what are you doing out there?” Emerson was “out there” because he believed it was shortsighted to protest an isolated evil; society required an entire rebirth

Explanation:

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).

summer because you get to tan and wear cooler clothes and go to the beach