A．Optimistic.
B．Pessimistic.
C．Skeptical.
D．Disbelieving.

A．To assemble machines.
B．To do some kinds of cleaning.
C．To work as service men.
D．To tell that the corner where walls and ceilings meet goes in, not out.

A．many public institutions have to cut down enrollments of students
B．teachers are not qualified enough for satisfactory performance in classes
C．some institutions have to reduce the expenses on research
D．there is keen competition for resources and attention of faculty between public and private institutions