There are 51 students in Class Three, __________ failed in the test.
| A．all of which |
| B．all of them |
| C．none of whom |
| D．none of them |
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 |
At the last moment，Tom decided to________a new character to make the story seem more likely.
| A．put up | B．put in |
| C．put on | D．put off |