It is a because swarm in singular in this case. The whole group acts as one. As a collective noun, swarm can be plural, but only if each bee were doing something individually.
Percy, Annabeth, and Grover are good friends. They trust each other and respect each other. Each one would lay down his or her life to save the other.
Answer:
Explanation:
Hellen Keller was a real person. She took years to learn to overcome her blindness and deafness. What she wrote was not a novel. This was not written as an example of a theme seen through a character's eyes.
This is her life. She wrote it. It is an autobiography.