<P> In expository writing , a topic sentence is a sentence that summarizes the main idea of a paragraph . It is usually the first sentence in a paragraph . </P>
<P> In expository writing , a topic sentence is a sentence that summarizes the main idea of a paragraph . It is usually the first sentence in a paragraph . </P>
where is the topic sentence usually found answers.com
where is the topic sentence usually found answers.com
the first sentence in a paragraph
the first sentence in a paragraph