1. It is the most important part of the paragraph because it tells you what the paragraph is all about. It answers the question, "What is it all about?"

2. It may be a sentence or a group of closely related sentences developing a single topic.

3. Arrange the group of words to complete the statement about the topic sentence. 

4. Sometimes, a paragraph ends with closing sentence.  It usually restates the main idea of your paragraph using other words.

Which of the following is an example of a dictionary?