——Whose ruler is it?'w)c6@*t:~2Y;a3A:B
——Maybe it’s _______。请选择CBA(r8Q'u4}2u+K2{7J.T;{0H2X8c:G'w)c6@*t:~2Y;a3A:B
A. Peter'w)c6@*t:~2Y;a3A:B
B. Peters'w)c6@*t:~2Y;a3A:B
C. Mary’s'w)c6@*t:~2Y;a3A:B