单选题 The drinking water has became {{U}}contaminated{{/U}} with lead.

【正确答案】 A

【答案解析】[解析] 句意为：饮用水受到了铅污染。contaminated“污染”，四个选项：polluted“污染”；treated“治疗，对待”；tested“考验，测验”；corrupted“腐败；(使)堕落”。