some time some times sometime sometimes 之间的关系和差异.啊、Are there any in the room?A\people B\ news C child 为啥?

some time some times sometime sometimes 之间的关系和差异.啊、Are there any in the room?A\people B\ news C child 为啥?
some time some times sometime sometimes 之间的关系和差异.
啊、Are there any in the room?
A\people B\ news C child
为啥?

some time some times sometime sometimes 之间的关系和差异.啊、Are there any in the room?A\people B\ news C child 为啥?
some time 是一段时间
some times 几次
sometime 某时
sometimes 有时 只要记住意思就区分开了
选a 是因为 前面be 动词用的是are 复数 只有a 单复数相同 b 是不可数名词 不能用复数are
c 是孩子 的 单数形式