Who ________ a theory about black holes?
| A．put forward | B．put down | C．put away | D．put off |
He had to pause from time to time to wipe the sweat from his forehead，because the airconditioning system ______.
| A．broke in |
| B．broke up |
| C．broke out |
| D．broke down |
Rod loves ______ clocks. However，he never manages to put them together again.
| A．taking apart |
| B．giving away |
| C．making up |
| D．turning off |
We were all agreed that the cottage would ______ a perfect holiday home for the family.
| A．make |
| B．turn |
| C．take |
| D．have |
I've ______ the habit of calling in on my grandparents on my way home from school.
| A．come into |
| B．gone into |
| C．got into |
| D．run into |
---OK，I've had enough of it. I give up.
---You can't ______ your responsibilities.
| A．run off with |
| B．run up against |
| C．run out of |
| D．run away from |