我想问下 some people have a pet,some people have pets 有什么区别还有类似的比如people's clothes people' cloth 到底什么时候是复数,什么时候是单数.有什么区别?

我想问下 some people have a pet,some people have pets 有什么区别还有类似的比如people's clothes people' cloth 到底什么时候是复数,什么时候是单数.有什么区别? Some people smile and some people cry.Some give up and some still try.Some say hi but some say by问下是什么意思 Do you think you will have your own robot?In some science fiction movies,people in the future hav 我想问下, 我想问下,急 我想问下, 我想问下, 我想问下： 外国人问我hav u measurements? 关于do some reading.我想问下.do some reading为什么read是现在时,do为什么不用现在时.为什么还要加some 分析一个原因状语从句You shouldn't get angry just because some people speak ill of you .我想问的是主句是哪句,从句是哪句? some people have to learn some people wait there turn 中文翻译下谢谢. 我想问下“挖卡卡”是什么意思 请帮我完成这篇阅读题Some people wonder what life will be like in the year 2500,although there are some who think that the world will no longer exist.Most people are optimistic and believe that man's ingenuity will solve the problems and hav Some people know?Some people know?Some people know? Some of my regulars are always on the lookout for ways that they can stump me.我想问下,这里lookout for 我想问下太阳有多重 我想问下怎样提高物理成绩?