A.like B.through C.consists of A.what substances your tap water【T1】______ B.while the water streams【T2】______pipelines C.【T3

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问题 A.like   B.through   C.consists of
A.what substances your tap water【T1】______
B.while the water streams【T2】______pipelines
C.【T3】______every other substance
    Drinking water,【T4】______, contains small amounts of bacteria. Most of these bacteria are common ones and they are generally not harmful. Chlorine (氯) is usually added to drinking water to prevent bacterial growth【T5】______This is why drinking water also contains small amount of chlorine.
    Water mostly consists of minerals and other inorganic compounds, such as calcium. If you want to find out【T6】______and whether it is totally safe to drink, you can have a specialized agency check it out for you.
【T1】

选项

答案C

解析 what substances your tap water(自来水)是一个从句,what是名词性从句的引导词,从句必须有谓语动词,因此本题选consists of充当谓语动词,C是正确答案,意思是“你的自来水是由什么物质组成的”。
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