FREE POINTS! THANK ME (PRESS THE HEART) ON AT LEAST 20 ANSWERS I HAVE DONE!
IF YOU DO THIS, I WILL DO ANOTHER ONE (free points) AT 3:20

okay

Explanation:

So, you’re giving us 5 points for literally, thanking you 20 times? That’s unfair, and you’re account should be terminated. Also, most people won’t even listen, they’ll just take your points. *unfair advantage.

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.