—Putting on a happy face not only helps us make friends but also makes us feel better.— _______.
Tom took a taxi to the airport, only ________ his plane high up in the sky.
Li Na is a Chinese tennis player, who is said ________ the world championship last year.
If he takes up this job, he will have no choice but ________ a much greater challenge.
New technologies have made ________ easier to enjoy life than ever before.
The California Earthquake took place at 5:15 a.m., and _______ for only a minute.