—Well, Dick, I’m sorry but I have to leave.
— . I hope to hear from you soon.
A. Enjoy yourself
B. Keep in touch
C. Don’t be so sad
D. So am I
网友回答
A. Enjoy yourself
(答案→)B. Keep in touch
C. Don’t be so sad
D. So am I
解析：交际用语，四个选项发表表示请自便、常联系、别这么伤心和我也是，根据题意，嗯，迪克，很抱歉，但是我不得不离开。——常联系。我希望不久能收到你的来信。选B。