No one will be sad because humans will have learnt to fix many of the problems that affect us now, like war, pollution and hunger, ?
A. will they
B. will he
C. won’t he
D. won’t they
网友回答
(答案→)A. will they
B. will he
C. won’t he
D. won’t they
解析：句意：没人伤心因为人类将能够处理许多影响我们的问题如战争、污染和饥饿，是吗？这是反意疑问句，它的后半部分与主句的主语和谓语一致，no one 用they代替，因为前半部分有no one所以后半部分用肯定的，故选A。陈述部分用 no, nothing, nobody, never, few, seldom, hardly, rarely, little等否定含义的词时，疑问部分用肯定含义。