Look at the image below.
20 pts

The purpose of the computer is to perform calculations, store information, retrieve data and process information.

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

abater   ambary   ambery   baryta   baryte   bemata   betray   jarvey   ramate   ramjet

explanation:

those are all the possible words