--I wonder why Mary is so unfriendly to us.
--She is _________than unfriendly，I’m afraid.（）

A．steps should be taken to get the dropouts back to campus
B．the dropouts should return to a lower quality school to continue their study
C．the PhD holder is generally a better adjusted person than the dropout
D．the high dropouts rate is largely attributable to the lack of stimulation on the part of faculty members

A．dress in fl fight way
B．introduce yourself
C．know your duties
D．know your CO-workers well

A．Are；having
B．Are；have
C．Do；have
D．Can；have