On AIDS Day, President Hu Jintao demanded that the problems _________ paid special attention to.A.referred to beingB.referred to beC.refer to beingD.refer to be
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B解析考查虚拟语气和分词作定语。referred to为后置定语修饰the problems, 又因为demand引导的宾语从句引用虚拟语气，故谓语动词应该是should be，而should可以省略，所以