Nobody noticed the thief slip into the house because the lights happened to__________.
| A．put up | B．give in | C．be turned on | D．go out |
Briggs will ________as general manager when Mitchell retires.
| A．get away | B．take over |
| C．set off | D．run out |
Oldfashioned phones matter when wireless networks ________in disasters.
| A．turn down | B．turn out |
| C．break down | D．break out |
Bears ________ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
| A．pack up | B．build up |
| C．bring up | D．take up |
I had hoped to take a holiday this year but I wasn’t able to ________.
| A．get away | B．drop in |
| C．check out | D．hold on |
Would you like to________with us to the film tonight?
| A．come along | B．come off |
| C．come across | D．come through |