——The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?
——____ my students have a try?
| A．Shall | B．Must | C．Will | D．May |
The electricity was cut off by the storm, and thus all the lights_______.
| A．were turned off |
| B．went out |
| C．went in |
| D．were turned on |
_______me, he walked up to me, smiling.
| A．To , see |
| B．For seeing |
| C．On seeing |
| D．Because seeing |
--- I regret_______ you John has been fired.
--- I can hardly believe my ears. He is such a fine worker.
| A．telling |
| B．having told |
| C．to tell |
| D．to have told |
The message is very important, so it is supposed _______ as soon as possible.
| A．to be sent |
| B．to send |
| C．being sent |
| D．sending |
It is strongly suggested that measures _______ students to cheat in exams.
| A．be taken to prevent |
| B．be taken to forbid |
| C．are taken to prevent |
| D．are taken to forbid |