请选择ABC:O:?3h:e)I+l,N早上遇见 刘老师，应说＿2n1m7W3_.B5`:I3g(d3t1|
A．Thank you，Mr. Li．2n1m7W3_.B5`:I3g(d3t1|
B．How？2n1m7W3_.B5`:I3g(d3t1|
C．Good morning，Mr. Liu．2n1m7W3_.B5`:I3g(d3t1|