Answer:
Doze<em>n's</em> of people have volunteered to help out at the marathon tomorrow.
<em><u>Dozens of people</u></em> have volunteered to help out at the marathon tomorrow.
The voluntee<em>r's</em> jobs include giving directions and distributing water and food.
The <u><em>volunteers' jobs</em></u> include giving instructions and distributing food and water.
<h2><em>Eiztari</em></h2>
