Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.Câu hỏi20 Two students are talking with each other at a party. Complete the conversation. A: "What year are you?" - B: “ _____ ” A. I'm not sure about that. B. I'm a stranger here. C. I'm a junior. How about you? D. I've finished my examinations.