My mother is not in very good shape, and has ____ tennis to get fit.
| A．filled up | B．built up | C．taken up | D．set up |
Knowing office rules— whether _______ or not—is critical, especially for young job seekers.
| A．written | B．writing | C．being written | D．having been written |
—He is eager to try something he has never tried before.
—Oh, I see. That’s _______ he’s different from others.
| A．when | B．where | C．how | D．what |
Last month, thousands of workers in that city went on _____ strike, demanding lower taxes and ______ end to cutting staff members.
| A．a; the | B．a; an | C．不填; an | D．不填; the |
--- How can you be late for such an important conference?
--- Sorry! But my flight was ______ by fog.
| A．taken over | B．held up | C．turned down | D．handed out |
So serious ________ that even the best doctors failed to save his life.
| A．the man was injured | B．was the man injured |
| C．the man is injured | D．is the man injured |