that's changed since i came here中 that's是什么的缩写?

that's changed since i came here中 that's是什么的缩写? That’s changed since I was here.That’s changed since Iwas here.这个句子中,'s可以改成was么?为什么？ Anne said,That's cahnged since I was here.的间接引语Anne said,That's changed since I was here.这句话变成间接引语是Anne said that that had changed since I had been thre 还是 Anne said that that had changed since I was there.原因 第一段的最后一句,that's changed since i was here中,that's 是that is 的缩写还是that has的缩写 高一英语必修一第一单元 That’s changed since I was here.中的was可不可以换成came? that's chenged since i come here的's为何不是was的缩写,（那被改变,自从…………）that's changed since i came here的's为何不是was的缩写,（那被改变,自从…………）changed题目打错了 A word that has changed the world,what's it? It's reported that it has changed a 英语翻译Long time,it's been very long since you gave me the same answer.Giving me just the word 'friends' but things that you've done are more than that.It's not,it's probably not.Because your heart's probably changed,like mine.You are brave enou mr.johnson is interested in all things and people __have changed greatly since he left his.为什么选that -China develops so fast.-That‘s sure.It___a lot already.A.changes B.changed C.will change D.has changed That's changed since I came here.按照整句话的意思,这句话不是应该用过去完成时吗?都说since I came here了,came表示以前我 来到了 这里,就改变了.可这句话为什么是现在完成时呢? and since things have changed in our culture toward people of my particular persuasion要怎么理解贴But I'm afraid old Mr.Jessie Compton died last year.I know, Bill said easily.That's why I came back.The land reverted to me,and since things h since the Internet came into being people's lives at home have changed这是一个定语从句吗 My hometown has changed g_ since 1990. 英语翻译that l’ve grown so crazy about everything to do with nature.I can well renenber that there was a time when a deep blue sky,the song of the birds,moonlight and flowers could never have kept me spellboud.That’s changed since I was here It's just changed. This is the first time that Apple has changed the size of the iPhone's display ,( )3.5 inches since the original one was released in 2007.A.measured B.measuring 为什么选B?Word came that free souvenirs would be given 头 （.） comes firstA.no ma