Final answer:
In the modified-block style, all lines, except for a few specific ones, begin at the left margin and subsequent lines are indented one-half inch.
Step-by-step explanation:
In the modified-block style, all lines, with the exception of the date line, complimentary closing, and keyed signature, begin at the left margin. The subsequent lines are then indented one-half inch.
For example:
John Smith
123 Main Street
City, State ZIP
Date
Dear Mr. Johnson,
I am writing to...