We had trouble finding a pure water supply.
2023-07-03
B: complete
C: clean
D: clear
参考答案：C
题干意为“我们在寻找纯净水供应方面遇到了麻烦。”句中划线词意为纯的，干净的。C项clean意为清洁的，干净的；例句：Clean air is surely much better and more hygienic．清洁的空气当然更好，更加卫生。A项typical意为典型的，代表性的；B项complete意为完全的，完整的；D项clear意为清楚的，明白的；故选C.
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