__________ represent your facial expressions and clarify or add meaning to computer-mediated communication by conveying your mood or tone

With the expansion of highways across America came a new form of advertising,

a. telegraphs. b. radio. c. signs. d. billboards.

According to your textbook, you will most likely feel most nervous

A. as soon as you get the speaking assignment B. as soon as you start speaking C. in the middle of the speech D. right before you begin the presentation