Over the years, people have learned from ants that teamwork and perseverance are indeed two key ______ to success.

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 ______.

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.

All work and no play makes Jack a dull boy, which suggests that work and play do not ______ but promote each other.

The young man ______with honesty and won the judges in the interview, as a result, he was admitted to the foreign company.