单项选择题
A．operate a computer B．do the job efficiently C．speak two languages D．write official documents
A．has taken part in a special business program B．tries to get the professors' high praises C．has worked much harder on her job D．has to prove herself to be efficient
A．she has difficulty handling her daily work efficiently B．she can hardly get a chance to be promoted C．she finds her present job too challenging D．she is tired of her duties at the college