In elementary school, that is what you are taught, but in middle school+, you din't knock before you come in the class. Since you use the word colleague, I'll assume you're in college, and you wouldn't need to knock.
Tldr; False, but it's good manners
The second sentence is an independent clause!
Depends on ur level of school, as a freshman itd be wrong bc they might need the page or paragraph
Answer:
Once upon a time when I was a discussion with a colleague over what to eat I referred to things she said at an earlier time to help my case. By debating in class, I learned new things based on history and used that knowledge to further support my answer.
One thing should always be in your mind is your listening power. If you cant listen to your partner you can't learn.
Explanation:
