2. 外语
  3. It is estimated that the disease ______ by polluted water will kill 1 out of every 100 children.

It is estimated that the disease ______ by polluted water will kill 1 out of every 100 children.

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问题 It is estimated that the disease ______ by polluted water will kill 1 out of every 100 children.
选项 A、causing
B、caused
C、to cause
D、will cause
答案B
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。
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