You have to compare to teacher to something else like: "My teacher is as sneaky as a fox" ; Something like that.
Answer: talk about something you are passionate about. like are you for or against students wearing uniforms or schools needing dress codes. or should people pay for college. stuff like that
The plural form of roof is roofs.
Although there are many words where f would become v, like in hooves, this is not one of those cases.
Your answer is first person