Many kinds of animals and plants die ____ every year.
A down B away C out D from
Lots of rescue workers were working around the clock，__________ supplies to Yushu, Qinghai Province after the earthquake.
| A．sending |
| B．to send |
| C．having sent |
| D．to have sent |
I tried phoning her office, but I couldn't __________.
| A．get along |
| B．get on |
| C．get to |
| D．get through |
I don't think these issues are __________ discussing with the ministers.
| A．worthy |
| B．worth |
| C．worthy of |
| D．worth to |
The rise of oil prices made scientists search for new energy re-sources to __________ oil.
| A．remove |
| B．replace |
| C．explode |
| D．explore |
The parents couldn't tolerate __________ the messy __________ in the room.
| A．seeing; scene |
| B．to see; sign |
| C．seeing; view |
| D．to see; scenery |