Which two words best convey an academic tone?

How does thoreau defend his approach in the second paragraph of "economy" inwalden? -he uses the word "t" because he feels it sounds more interesting-he does not use first-person point of view because his is a fictional account-he uses first-person point of view to get his readers' attention-he uses the word "t" for the sake of sincerity and honesty.

If you begin to question the validity of the catholic church's teachings, then you could be considered a

Meaning to its abbreviation. 1. contraction gr. 2. obsolete as 3. greek pl. 4. anglo-saxon obs. 5. plural g. 6. german ff. 7. that is pron. 8. colloquialism colloq. 9. following i.e. 10. pronoun contr.