说老年人们是用the old还是the olds?

说老年人们是用the old还是the olds? 形容老年人和年轻人 能用the youth the old 是the old man has a five years old grandson还是the old man has a five-year-old grandson? 中老年之间富贵显达,是说中年和老年都有钱,还是中年或老年才有钱? the old ,the police 特指一类,那么后面be用is 还是are? 例如老人正在打扫,是the old is cleaning? Now the old people ____colorfulclothesNow the old people ________colorful clothes用wears还是用with? He is___(old)of the two brothers.是填the older还是 the elder The old man _____ tired 是用was还是felt?为什么?尽快 the old 做主语谓语动词用单数还是复数? Problems of the Old People in China是说老年人给社会带来的问题,还是说老年人自身面临的诸如社保、住宿等问题? 是 I see an old man on the road还是 I see an old man in the road 桌子上的报纸是旧的可以翻译成 The newspepar on the table is old?吗答案是 The newspepar on the are old? 问题没说一些报纸啊,用单数也可以吧 the old the government has to take the responsibility for the old people's carefor the old people's care到底是做定语还是状语 这个十岁的女孩英语用The ten year old girl还是The ten-year-old girl 关于old elder elderly用法问题older和elder作为old比较级的用法区别我知道了但是 old elder elderly 作为形容词用法有什么区别是the old 还是 the elder 还是 the elderly The people in the sea是该解释为人们在海里还是海里的人们 求解 一般是说the plan for,还是the plan of?