Use the excerpt from "Birches" by Robert Frost to answer the question.
"When I see birches bend left and right
Across the lines or straighter darker trees,
I like to think some boy's been swinging them
But swinging doesn't bend them down to stay."
In 3-5 sentences, write about the author's repetitive use of the "b" sound and it's significance in the excerpt. Use details from the excerpt to support your ideas.