Rewrite the sentences replacing the underlined words by a personal pronoun. a. Valter is my best friend. b. Are Marta and Patricia from Spain? c. Is Carlos an engineer? d. Laura is not my mother's friend. e. Melissa isn't a doctor. Melissa is an architect. f. My teachers are from the USA. g. You and Gustavo aren't from Italy. h. Are you and I good friends?