单选题 Father: How's your day at school, Costa?Costa: 56, Daddy! It's a day I will never forget.Father:Oh,is it? 57,my son?Costa:I have been made the chairman of the Students' Association.Father :That's great.58 !Costa: 请作答此空Father :That's really nice. You stood first in the examination and now you have won the chairman-ship.60,my son.Costa : Thank you, Daddy.
【正确答案】 A
【答案解析】口语的礼貌习惯用语。儿子对父亲的祝贺表示谢意。选项A是正确的。