.—You couldn’t have bought me any present better. —_______.
| A．I’m glad you like it. | B．Then I’ll give you a better one next time. |
| C．You have a gift for present | D．I’m sorry I can’t make you satisfied |
All work and no play makes Jack a dull boy, which suggests that work and play do not _________ but promote each other.
| A．conduct | B．convey |
| C．contradict | D．confirm |
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．appreciation | B．approval |
| C．assistance | D．assessment |
The lower production levels are a _________ of dissatisfaction among the workers, so it’s time to raise their salary.
| A．symptom | B．recognition |
| C．potential | D．tendency |
________in space by ordinary citizens will be common.
| A．Travel | B．Travelling |
| C．Travelled | D．To travel |