A speaker should list everything she knows about the topic and purpose of speech in the introduction.
This is not true, if you listed everything you knew what would make up the body of paper.
Should have something to grab audience’s attention, maybe a important highlights of history or background, and then a thesis (listing the items you plan to discuss and your stance on them or their importance.
Answer:
most of the time yes, they do
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A prepositional phrase describes the noun in this sentence the prepositional phrase is "of support" it is describing "letter" so the object of the preposition is "letter"
Answer:
fiction based on imagined future scientific or technological advances and major social or environmental changes, frequently portraying space or time travel and life on other planets.
Explanation:
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