The passage below has gaps numbered 11 to 20. Immediately following each gap, four options are provided. Choose the most appropriate option for each gap.

 A prepared speech is not easy to deliver, especially if it is not written by the presenter. -11- [A. Quantum B. document C. free D. manuscript] delivery is one in which the speech has been written out word from word and is read to -12- [A. an audience B. a congregation C. a conference D. a gathering]. this kind of delivery is usually reserved for very -13-[A. genuine B. impromptu C. guaranteed D. formal] occasions when exact wording is -14-[A. reportive B. conclusive C. speculative D. critical] such as the State of the Union Address or speeches before the United Nations General -15-[A. Assembly B. Audience C. Organisation D. Negotiation]. The primary advantage is that the speech may be highly-16-[A. advanced B. analogous C. discreet D. polished] in terms of word choice, turns of phrase, and development of ideals. The main disadvantage is that this type of delivery is difficult to do well. Reading aloud with meaningful -17-[A. vocal B. bifocal C. anticipatory D. profuse] inflection requires the speaker to be very familiar with the text. If not, the words will come out in a choppy, expressionless way. Such poor delivery could destroy any -18- [A. decisive B. positive C. interactive D. restrictive] effects created by the carefully chosen -19- [A. dialect B. rhetoric C. slang D. language] . Lack of familiarity with the -20- [A. text B. context C. exchange D. note] could also prevent the speaker from maintaining eye contact with the people being addressed.