问题补充：
--- I must say it is the most delicious duck I have ever eaten.
--- . I’m glad you enjoyed it.
A. Please don’t say so
B. Thank you
C. OK
D. That’s OK.
答案：
A. Please don’t say so
(答案→)B. Thank you
C. OK
D. That’s OK.
解析：Please don’t say so请不要这样说；Thank you 谢谢你；OK好吧；That’s OK.那好吧。句意：我必须说这是我吃过的最美味的烤鸭。根据下文，很高兴你能喜欢。结合语境可知选B。
