Don’t all speak at once! _______ please.
| A．One by one time | B．One for each time | C．Each at one time | D．One at a time |
According to __________ World Health Organization, health care plans are needed in all big cities to prevent __________ spread of AIDS.
| A．the; 不填 | B．the; the | C．a; a | D．不填; the |
For him __________ stage is just __________ means of making a living.
| A．a; a | B．the; a | C． the; the | D．a; the |
Of all __________ reasons for my decision to become a university professor, my father’s advice was __________ most important one.
| A．the; a | B．不填; a | C．不填; the | D．the; the |
In __________ review off 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of __________ heart disease by 76%. _______
| A．a; the | B．the; a | C．a; 不填 | D．不填; a |
— I knocked over my coffee cup. It went right over __________. — You shouldn’t put drinks near __________ computer.
| A．the; 不填 | B．the; a | C．a; 不填 | D．a; a |