单项选择题
W: Do you know where Tom is
M: Sorry, I don’t know.
W: Oh, my God!
M: What’s the matter
W: He is supposed to be at the meeting a quarter later. But I can’t find him anywhere.
M: Oh, I remember something. John told me that Tom went out for lunch at ... er ... about a quarter to two and would not be back unitl 3:30.
W: Then he will be late for the meeting.
M: What’s the time now
W: 3:00.
A．He was supposed to go out for lunch.
B．He was supposed to come back home.
C．He was supposed to have a meeting.