Use the excerpt from ''Birches'' by Robert Frost to answer the question.
''When i see birches bend to left and right
Across the lines of 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 its significance in the excerpt. Use details from the excerpt to support your ideas.