题目内容：

英语高考9.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

优质解答

9.There are some health problems that, when _C___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


您好,很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,如果满意记得采纳
如果有其他问题请采纳本题后另发点击向我求助,答题不易,请谅解,谢谢.
祝学习进步

追问：

其实答案是A

追答：

我是觉得后面有个later on；所以应该有将来的意思；所以用了to be treated

追问：

但真的是A。。。

追答：

状语从句省略主+BE,=when they are not treadted... 译：有一些如不及时治疗以后会变得更糟糕的健康问题。 评：将when改成if是不是更好些。 析：如果用not being treated, 则还原成：when they are not being treated...是正在进行的被动语态，不当。When not having been treated =when they are not having been treated ..., 没有这样的时态语态结构。 注：when有时有“在。。。的情况下”的意思，相当于，if,也可以译作如果