请选择CBA6])q9`*N5v/V/A3d'K3x,w:V -Is this your book? -_________________.1_'y,x0]/j6P+[/g
A. Yes! It"s mine.1_'y,x0]/j6P+[/g
B. Thank you!1_'y,x0]/j6P+[/g
C. OK.1_'y,x0]/j6P+[/g