He wrote a letter ______ he explains what had happened in the accident.
His ______ that he was to blame kept the others from being punished.
She earns only 600 yuan a month and has little money for______.
The Capital Stadium is modeled ______ the shape of a bird’s nest, which is familiar ______ us Chinese.
Tour guides for groups of over ten must be booked ______.
______ by the beauty of nature, the girl from London decided to spend another two days on the farm.