◎ 题干
The world's elderly population will exceed  that of children by 2060, when each group ________ to
account for about one fifth of the population.
[     ]
A. expects  
B. will expect
C. is expected  
D. will be expected
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“The world's elderly population will exceedthat of children by 2060, when each group ________ to account for about one fifth of the population.[ ]A. expectsB.…”主要考查了你对  【一般现在时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。