第24题: [单项选择]It is estimated that the disease ______ by polluted water will kill 1 out of every 100 children. A. causing B. caused C. to cause D. will cause 参考答案:B 答案解析:[解析] 本题考查动词形式;根据句意,应该是由污染水引起的疾病,因此应该用过去分词 caused,表被动。句意为:据估计,每100个孩子中就有1个死于由水污染引发的疾病。