Identify the plural form of the word in parentheses. Because she had so many (address) to remember, she finally bought an alphabetized book. A. address's B. addresses

Whenever one of these elements changes, it has an impact on each of the others. For instance, if you are writing to a friend, you might choose a casual form, like e-mail or a note. However, if you are writing an essay for a class, you will have a very different purpose and form.