英语高考9.There are some health problems that,when ----in time,c

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 再问： 其实答案是A 再答： 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再问： 但真的是A。。。 再答： 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