What are the options? As soon as you put them on the question I'll be glad to answer your question :)
Longfellow uses poetic terms to add suspense and tension. For example, on lines 55-56 it says <span>“A line of black that bend and floats/ On the rising tide, like a bridge of boats.” This is any example of a simile and adds suspense to the poem.
Hope this helps!</span>
