I. Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.Câu hỏi - X: "George, I would like to introduce a friend of mine, if I may: Albert Snow. Albert, this is George Smith." - Y: “ _____ ” A. How have you been? B. Pleased to meet you, George. C. Mind if call you George? D. The pleasure's mine.