9 Liz: I heard a lot of sirens late last night. I wo er what happened.
Charles: I don't know. There
a fired an accident.
may be
maybe had
may have been
must be

If the four main points of this informational speech were changed 1. part-time job interviews ii. summer job interviews iii. college entrance interviews iv. full-time job interviews organization type would change from a. topical, cause-effect b. chronological, topical c. spatial, chronological d. cause-effect, spatial