If he_____his teacher' s advice, Asafa Powell would not be the fastest man in the world.
| A．didn't follow | B．wouldn't have followed |
| C．hadn' t followed | D．hasn' t followed |
It snowed heavily; ______, lots of flights have been put off until further notice.
| A．or else | B．as a result | C．as well | D．as a matter of fact |
She is a woman of strong ______ and we all believe she will be a good leader.
| A．feelings | B．character | C．behavior | D．appearance |
The country has been ______ war with its neighbor for almost ten years.
| A．in | B．on | C．at | D．during |
The company saw it as part of its social ______ to provide education for its workers.
| A．reward | B．request | C．research | D．responsibility |
The five rings on the Olympic flag ______ the five continents that are joined together in the Olympic Games.
| A．belong to | B．stand for | C．take apart | D．pack up |