The girl is singing an English song in the next room is Tom’s sister.
| A．whom | B．which | C．whose | D．who |
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 __________ keyboard.
— You shouldn’t put drinks near __________ computer.
| A．the; 不填 | B．the; a |
| C．a; 不填 | D．a; a |
Some kinds of animals can _______ the colour of their surroundings.
| A．take on | B．dress up | C．put on | D．get into |