It means exactly what it says...to write about what you know. If you know about something than you'll have more to say and have an opinion. If you don't know about a subject...there's less to say.
Answer:
When my dog died, I told my friends and they just laughed it off. If I was given sympathy, I would have felt better about it and get over it quicker.
(This is not a real-life situation for me, so you don't have to use it)
Answer:
Irony
Explanation:
Its ironic because the teacher is pushing homework onto his student while he loathes doing homework.
This is a little late but I thought I would post this anyways.
