选句子补全下列对话。2t,P1Y/@)q7N2|)s)`(a9z;j:p
-0|+B)u1s*{？ （Who are they; Whose are they）2t,P1Y/@)q7N2|)s)`(a9z;j:p
-They are mine．2t,P1Y/@)q7N2|)s)`(a9z;j:p