单选题 A lot of people could fall ill after drinking contaminated water.
  • A. muddled
  • B. polluted
  • C. mixed
  • D. troubled


【正确答案】 B
【答案解析】contaminated water：受到污染的水，故和polluted同义。muddled water和troubled water都是“混浊的水”；mixed：混合的。