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 |
--Which car is better, the red one or the black one?
--I prefer the red one, but it is really a matter of personal________.
| A．taste | B．style |
| C．affair | D．tradition |
In the past several weeks, many cities in Northern China________from heavy fogs, causing great inconvenience to people.
| A．suffered | B．have been suffering |
| C．were suffered | D．had been suffered |
Could you tell me where you bought your beautiful handbag? I want to buy________too.
| A．one | B．that |
| C．this | D．it |
The new government made a promise that they would surely improve the________of people’s life.
| A．outline | B．quality |
| C．insurance | D．attitude |
A big crowd gathered _____ him ______.
| A．to hear; speak | B．hearing; speaking |
| C．to hear; speaking | D．hearing; to speak |