问题补充:
On AIDS Day, President Hu Jintao demanded that the problems paid special attention to.
A. referred to being
B. referred to be
C. refer to being
D. refer to be
答案:
A. referred to being
(答案→)B. referred to be
C. refer to being
D. refer to be
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,所以答案为B。