请选择ABCD*{2X+q“Look, it ____ be Lao Wang.”6S4t8C+_6f1y.`8y/s
“No, it ____ be him. He has gone abroad.”6S4t8C+_6f1y.`8y/s
A.may; mustn’t6S4t8C+_6f1y.`8y/s
B.must; may not6S4t8C+_6f1y.`8y/s
C.must; can’t6S4t8C+_6f1y.`8y/s
D.can; may not6S4t8C+_6f1y.`8y/s