... (smoking, drinking, cooking , ) - noun = V + tion (invention, action, extinction, creation, prevention, pollution, explanation, production, attention, ) - noun = V + er/ or (inventor, visitor, ... top on Dơng Thảo Song Cong Upper-secondary School Saturday, July 06, 2013 to from in on the right into on the left out of out at the bottom under o Preposition: on/ at/ in can be prepositions ... 20th: Pronouns I Theory: o Definition: Pronouns are words that can be used in place of nouns or noun phrases o Kinds of pronouns: Personal pronouns (Đại từ nhân xng): - Subject pronouns: I,...