-You can take a walk daily if you want to keep healthy.-- .A. Yes that’s enoughB.

问题补充：

---- You can take a walk daily if you want to keep healthy.

---- .

A. Yes, that’s enough

B. Thanks for your advice

C. I like surfing the Internet

D. Well, that’s OK

答案：

A. Yes, that’s enough

(答案→)B. Thanks for your advice

C. I like surfing the Internet

D. Well, that’s OK

解析：查交际用语。Yes, that’s enough 是的，那足够了；Thanks for your advice谢谢你的建议； I like surfing the Internet 我喜欢网上冲浪。 Well, that’s OK哦，那好吧。句意：如果你想保持健康，你可以日常散布。结合语境可知选B。