A．Teachers like Professor Janson are rare.
B．Professor Janson has won a million dollars.
C．Professor Janson is likely to be teaching at that school.
D．There are many teachers as good as Professor Janson.

A．She has to change the time for the trip.
B．She hasn’t decided where to go next month.
C．She can’t afford the time for the trip.
D．She will manage to leave this mont