The US President Obama told the students that he ______ by a single mother who were strict with him and wished him great success in his studiesA.will have been brought downB.has been carried outC.was brought upD.was about to be cared for
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C解析短语辨析及语态时态。Bring down打倒，打死；carry out执行；bring up养育，教育； care for照顾，喜欢。句意：美国总统奥巴马告诉学生们他被一位对他很严厉的、希望他在学习上取得巨大成功的单身母亲抚养长大。结合语境可知本句描述的是过去发生的动作，奥巴马是被养育的对象，故用被动语态。选C。