—Is this Li Ping's watch,Mary?—I don't think so.It must be( )

问题描述:

—Is this Li Ping's watch,Mary?—I don't think so.It must be( )
A.anyone's else B.anyone else's C.someone's else D.someone else's
理由

D.someone else's
意思是其他某人的
可以这样看:someone else's watch 其他某个人的手表