Phil is ______ person we know.21/64Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. Phil is ______ person we know.the happierhappiesthappierthe happiestGiải thíchChọn D Cấu trúc so sánh nhất: the + tính từ so sánh nhất (adj+est hoặc most +adj)