My life has changed a lot!为什么用has而不用 have

My life has changed a lot!为什么用has而不用 have my life has changed a lot中的has changed a lot是什么语啊 Our school has changed a lot since I left it 为什么,has用原形,而不用过 My life has changed a lot during the _____ years. 为什么不能说My hometown has changed a lot.只能说Great changes have ta 是"there has changed a lot"还是"there have changed a lot"?”为什么 英语翻译The new life of Grade 3 My life has changed a lot since 1.My life has changed a lot during the ___years.A.last a few my life has changed a lot during the__years.a.last a few b.l 英语翻译My life has changed a lot in the last three years.I used My life has changed a lot in the l_____ few years my life has changed a lot in the last few years