She is already 18 years old, but she as if she were still a little girl.
The fires burned for three days, ________ a total of 25,000 buildings.
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.