Rule of thumb is a guide or refs principle of some sort. For example, "as a rule of thumb, I do not begin big projects until the weekend." I hope this helps.
Suspended is a period of time expelled is forever like if you were suspended in a School it would usually be a week if you were expelled you would never be able to come back to that school
D: visionary because that has to do with sight.
HOPE I HELPED!!!
Answer:
"It's a prepositional phrase acting as an adverbal phrase"
