A much better way must be found to achieve an equal________of the resources.
| A．distribution | B．contribution |
| C．catalogue | D．separation |
.All that can be done ______.
| A．has done | B．has been done | C．have done | D．have been done |
.One or perhaps more pages _______.
| A．is missing | B．has been missed | C．are missing | D．was missing |
.More than one worker ______ dismissed.
| A．have been | B．are | C．has been | D．Has |
.Many a student ______ the importance of learning a foreign language.
| A．have realized | B．has realize | C．have been realized | D．has been realized |
.The gas works ______ near the city.
| A．is | B．are | C．were | D．Be |