Impromptu is a planned spontaneous presentation.

A. 对
B. 错

If a person asks a question that you don't understand, you may just ignore it.

A. 对
B. 错

Periodically ______what you have covered so far.

______your presentation can help you eliminate potential problems and build up your confidence.

Make on-the-spot adjustment according to the audiences’______.

Do not practice_____. Always invite trial listeners to help you.

When you are ______ a speech, pay particular attention to timing.

To aid the audiences' comprehension, you may use audio-visual aids, which include

A. PowerPoint
B. Videotape and DVD
C. Handouts
D. Posters and Flip Chart

Several strategies to consider for beginning a presentation, they are:

A. Declarative Statement
B. Impressive Facts or Statistics
C. Rhetorical Questions
D. Example

There are several basic delivery techniques. They are:

A. Impromptu delivery
B. Memorized delivery
C. Extemporaneous delivery
D. Script delivery