Provide two pieces of textual evidence showing that Frodo is in danger.

The first challenges to confront Frodo dramatize his inexperience. He is indecisive, delaying his departure from the Shire as long as possible even though he knows the task is urgent. He opts to risk the dangers of the Old Forest, nearly getting himself and his friends killed — twice. He behaves foolishly in Bree, drawing unnecessary attention to himself. And he gives in to the temptation to put on the Ring at Weathertop, making himself vulnerable to the Ringwraiths' attack.

Nevertheless, Frodo survives both the obvious dangers and his own mistakes. The novel attributes his success to two main factors. First, as Gandalf is fond of pointing out, hobbits are tougher than they look, and simple toughness — the ability to endure hardship and move past it — goes a long way in this struggle. Second, Frodo does not want and never sought the power of the Ring, meaning that he continues to resist its lure. Although he lapses momentarily at Weathertop, he reiterates his commitment to resist at the Ford of Bruinen. Heroism does not require perfection, only the aspiration to do good.

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).