I. Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.Câu hỏi Two teenagers are talking with each other. Complete the exchanges with the best answer: A: "Have you decided on your future job yet?" – B: “ _____ ” A. I'm thinking about being a teacher. B. I'm doing well at school now. C. I'm trying my best to fulfil my ambition. D. Definitely good for you.