◎ 题干
       there is 70% of  water on the planet, only about 1% of that water is drinkable.
[     ]
A. Though  
B. Only if
C. As though
D. However
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ there is 70% ofwater on the planet, only about 1% of that water is drinkable.[ ]A. Though B. Only ifC. As though D. However…”主要考查了你对  【从属连词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。