Only ______ a human being.
| A．when is it hungry a lion will attack |
| B．when it is hungry a lion will attack |
| C．when it is hungry will a lion attack |
| D．when is it hungry will a lion attack |
The teacher always tells her students that only if __________ hard _________ achieve success.
| A．do they work, will they | B．do they work, they will |
| C．they work, will they | D．they work, they will |
As a job seeker, he should first decide what to do and what he should _________ in his resume(履历).
| A．leave behind | B．leave out | C．leave alone | D．leave off |
－Hasn’t Zhao Wei finished filming the movie So Young?
－Yes. She ______ on it for more than half a year.
| A．is working | B．has been working |
| C．worked | D．will have worked |
Many people prefer large cars, _____large cars are safer than small ones.
| A．thinking | B．to think | C．think | D．having thought |
Christmas is ________ federal holiday in the States—all government employees get ________ day off.
| A．the; the | B．a; / | C．a; the | D．/; the |