Today people are paying more and more attention to their health books on keeping healthy

问题补充：

Today, people are paying more and more attention to their health, books on keeping healthy extremely hot.

A. to make

B. making

C. make

D. made

答案：

A. to make

(答案→)B. making

C. make

D. made

解析：这题考查现在分词做结果状语，表示顺理成章的结果，句意是：今天人们越来越关注他们的健康，使得和健康有关的书非常受欢迎。选B。