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

---- 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

A. Yes, that’s enough(答案→)B. Thanks for your adviceC. I like surfing the InternetD. 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。

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