The world’s elderly population will exceed(超过) of children by 2060,when each group to account for about one fifth of the population.
A. that; expects
B. those ; will expect
C. that ; is expected
D. one ; will be expected
网友回答
A. that; expects
B. those ; will expect
(答案→)C. that ; is expected
D. one ; will be expected
解析：考查代词和时态语态：第一空填that指代population，第二空填is expected因为each group和expect是被动关系，句意：世界老年人口到2060年将超过儿童的人口，那时每个群体将占据人口的5分之一。选C。