The research is so designed that once ______ nothing can be done to change it.
| A．begins | B．having begun | C．beginning | D．begun |
not to miss the flight at 15. 20, the manager set out for the airport in a hurry. (2009 .福建)
| A．Reminding |
| B．Reminded |
| C．To remind |
| D．Having reminded |
twice, the postman refused to deliver our letters unless we chained our dog. (2009 .北京)
| A．Being bitten |
| B．Bitten |
| C．Having bitten |
| D．To be bitten |
Film has a much shorter history, especially when such art forms as music and painting.
| A．having compared to |
| B．comparing to |
| C．compare to |
| D．compared to |
The students are forbidden, unless they had special passes,after 11 pm.
| A．staying out |
| B．from staying out |
| C．stay out |
| D．to stay out |
, the mountain looks like an elephant.
| A．Having seen from a distance |
| B．Having been seen from a distance |
| C．Seeing from a distance |
| D．Seen from a distance |