______ number of our class is fifty-nine and ______ number of students are fond of English.
| A．The, the | B．A, a |
| C．A, the | D．The, a |
Mary worked here as a ____ secretary and ended up getting a full-time job with the company.
| A．pessimistic | B．temporary | C．previous | D．cautious |
As the world’s population continues to grow, the ___of food becomes more and more of a concern.
| A．worth | B．supply | C．package | D．list |
—Pardon？Who will come?
—________.
| A．The friend of Mr. Green’s |
| B． A friend of a teacher’s |
| C．The aunt of Tom’s |
| D． A cousin of my father’s |
One way to understand thousands of new words is to gain ________ good knowledge of basic word formation.
| A．不填 | B．the |
| C．a | D．one |
Every possible means ________， but it seems that nothing will prevent the situation from getting worse.
| A．has tried | B．have tried |
| C．has been tried | D．have been tried |