china,i'm a university student,learning english.what abot U

I'm a student came from china 错了吗 I'm a student from the China.为什么去掉the? I'm riding a bike that's made in china同义句 I'm riding a bike __ ___ CHina I'm not from China ____ America.I'm not from China ____ America.A.but from B.but I'm from China.急用 I'm a middle school student in China I'm b( ) on weekdays I live in China还是I'm live in china I'm from China .I want a male friend from another country. 英语翻译The application of bio?occulant for the removal of humic acids from stabilized land?ll leachates Anastasios I.Zouboulisa,*,Xiao-Li Chaib,Ioannis A.Katsoyiannisa aLaboratory of Chemical Technology,Department of Chemistry,Aristotle Universi ------are you from?I'm from China. I‘m from china改成一般疑问句 Im from China改为一般疑问句 I'm from china改成特殊疑问句 I'm very excited a_______going to China I’m from china 改为复数形式 I'm from china.的问句是什么 I'm from China相近的意思 I’m from China where it is really a beautiful place.这句话有没有问题?