______ the danger ahead on the railway line, he decided to go to Beijing by plane instead.
| A．Having been informed of | B．Having informed of |
| C．To be informed of | D．Informing of |
_ properly, a car can be used for many years.
| A．Maintained | B．Maintaining |
| C．To be maintained | D．To maintain |
With a lot of work ______, she weren't allowed to leave her office.
| A．do | B．done . | C．to be done | D．to do |
US house prices has risen by 12.4% over the 12 months to the end of July, completely ______his plan to buy another apartment.
| A．ruined | B．ruining | C．to ruin | D．ruins |
The capsule began swing gently sideways as we lay _______.
| A．relaxed and dreaming | B．relaxed and dreamed |
| C．relaxing and dreaming | D．relax and dream |
____ to cholera, the people became _______.
| A．Exposed; terrified | B．Exposing; terrified |
| C．To expose, terrifying | D．Exposed; terrifying |
Ted told his father he ______ his homework three hours before.
| A．finished | B．has finished | C．was finishing | D．had finished |
____ by high mountains, the city is infamous for air pollution.
| A．Surrounding | B．To be surrounded |
| C．Surrounded | D．Having surrounded |
Dressed in a newly-bought skirt , _________.
| A．I could hardly recognize her |
| B．nobody could recognize her |
| C．she could hardly be recognized by me |
| D．there was nobody who could recognize her |
Music _________ by the British musician attracts music lovers all over the world.
| A．to write | B．to be written | C．written | D．writing |