题目内容
There are some health problems that, when ______ in time, can become bigger ones later on.
| A.not treated | B.not being treated |
| C.not to be treated | D.not have been treated |
A
试题分析:句意:有一些健康方面的问题,如果不及时治疗的话,后来问题会越变越大的。空白处的完整结构应是they are not treated。当主句和从句的主语是一致,且谓语动词是be动词的某种形式,这时可以省略主语和谓语动词。故A 正确
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