M: Hi Grandma, it's so good to see you again. ,F: Nice to see you Jack. ,M: We haven't seen each other for half a year.
(A) F: Yeah, it's been one and a half year since I last saw you. Let me look at you. (B) F: Oh, yes. Last time I saw you, it was half a year ago. You've grown up, our boy. (C) F: It's one year ago that I saw you the last time. You are taller, my sweetie son. (D) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?
B