it does not belong to me,it is someone else suitcase这句话错在哪

it does not belong to me,it is someone else suitcase这句话错在哪 I love it,but it does not belong to me,tell me why? Does not belong to me,I will let go.Though it's pain to die, Does not belong to me? but it is not belong to 为什么是That does not belong to me 而不是That is not belong to me The book is not mine.It's____.A.someone else B.someone else' the dictionary does not belong to your brother or ( ),it is Who does it belong to? --who does it belong to 的回答--Me.还是Mine. This Suitcase Belong To Me这句话对么?要对,急阿 it is w___ to steal someone else's poem.