4. (1)Illiterate people face great problems in our society. (2)For one thing, people who cannot read or write are limited in a
world full of print. (3)They can't read stories in the newspaper or the menu in a restaurant. (4)In a supermarket, they must
depend on packages with familiar pictures and colors. (5)In addition, illiterate people do not vote. (6)As a result, they are
"half-citizens" who cannot exercise their democratic rights. (7)Another problem is in pursuing an education. (8)Illiterate
people find it difficult to take courses that might help them advance in their job or get a better job. (9)Finally, they have
trouble helping their children learn. (10)They are not able to help with homework and often do not visit a school for fear of
embarrassing their child or themselves.
The addition words that signal the second problem of illiterate people are
a. "half-citizens."
b. democratic rights.
c. in addition.