Is your sister study in the shudy?哪里错了

Is your sister study in the shudy?哪里错了 is your sister writing carefully in the study这句话有什么错误? your sister is going to study english.write a letter to a friend of your,who is an Enlish teacher She is your sister Is that ( ) your sister is () your study? sister,Lily IS she your sister,Lucy? Is this your sister?与Is she your sister?区别 w_____ girl is your sister? w()girl is your sister Is that your sister?,回答 How tall is your sister? Is this your sister是什么意思 Who one is your sister? Is your sister good ( ) not ? your sister is coming是什么意思 where is your sister's sister's sister?的意思 young sister.i hope that you can pay attention to your study.after all.the most important thing is study at present.