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.
If you want to book tickets for the 2012 Olympic Games, just call 00952012. It_______ be simpler.
More and more people will fall in panic, as the expert predicts, if not _______ properly.
The toughest thing about success is _______ you have to keep on being a success.
Cooking calls for _______ patience and time but it is _______ enjoyable experience.
Taiwan—born film-- maker Ang Lee won the Oscar for best Director at the 78th Academy Awards, _______ the highest honour in American movie fields.