Is the pen Nancy's sister 什麽意思

Is the pen Nancy's sister 什麽意思 The _ is for my sister,Nancy. Is Linda with Nancy?Who is Jim's sister? where is your sister's sister's sister?的意思 The comb isn't _ ._ is yellow.A Nancy ; She B Nancy 's;Hers The mirror is my sister's. The boy is Nancy's brother .The boy is under the tree.（改为复合句 The letter is ( )Mike ( ) Nancy The pen.He is writing is mine的意思 the pen is black it´s a black pen my.jacket is 初一英语同意句转换:She is Maria's pen friend.she is the pen friend __ Nancy is from the USA./ Nancy ( ) ( ) the USA.