An artist who was recently traveling on a ferry to the southern island discovered________a long lost antique Greek vase.
| A．at random | B．by chance |
| C．in turn | D．on occasion |
Los Angeles Times reported that researchers may have found a way to ______ human life by changing certain genes, so that humans might expect to live twice as long.
| A．extend | B．preserve |
| C．multiply | D．transform |
A 19-year-old teenager from Guangdong nicknamed Niko demanded an apology from Youku, which he believed violated their copyrights as it used his team's photos without ______.
| A．commitment | B．approval |
| C．recognition | D．reservation |
Over the years, people have learned from ants that teamwork and perseverance are indeed two key ______ to success.
| A．certificates | B．ingredients |
| C．approaches | D．instructions |
Finally, I made the choice to withdraw from college to care for my grandma __________ the fact that she had developed cancer.
| A．In favor of | B．in possession of |
| C．in view of | D．in charge of |
While Peking Opera is widely regarded as a symbol of Chinese culture, it has been losing young audiences due to its __________ outdated style and slow rhythm.
| A．responsibly | B．relatively |
| C．plainly | D．deliberately |