There are some health problems that when in time can become bagger ones later on.A. not

问题补充：

There are some health problems that, when in time, can become bagger ones later on.

A. not treated

B. not being treated

C. not to be treated

D. not having been treated

答案：

(答案→)A. not treated

B. not being treated

C. not to be treated

D. not having been treated

解析：考查非谓语动词的用法。句义：有一些健康问题，如果不及时治疗的话，后来很可能会成为乞丐把你的钱花光。关键词health problems“健康问题”和“治疗”之间的关系是被动关系，与done的进行式，将来式，完成式没关系，所以Ｂ C D不对，A正确。