—I saw Mr.White in his office just now.
—No，it ______ be him.He has ______ Beijing and will come back next Friday.
A．mustn't；gone to B．can't；gone to C．can't；been to
—I saw Mr.White in his office just now.
—No，it ______ be him.He has ______ Beijing and will come back next Friday.
A．mustn't；gone to B．can't；gone to C．can't；been to
B