Read the passage. (1) Placement in Internet search engines involves a company paying a search engine to ensure that they come up
first in an Internet search, regardless of relevance. (2) Internet search engines used to sell placement to companies. (3) Internet search engines practiced placement for years. (4) Users complained vehemently. (5) Now, paid advertisements are offered above or beside a legitimate search return. (6) What is placement? Where is the most effective placement for sentence 6? before sentence 2 before sentence 1 where it is now after sentence 3
Sentence 6 would be best placed before sentence 1. If sentence 6 came first, it would serve as a good topic sentence to introduce the idea of placement. This sentence would not make sense anywhere else in the paragraph, since the idea of placement is introduced immediately.
The topic sentence is usually the first (or sometimes the second) sentence of a paragraph. It summarizes the paragraph as well as identifies the main point.
