______________ in a white dress, the girl looks very pretty

Having taken our seats,_______________________.

While ________ the street, he was hit by a car.

Some websites are designed to instruct people how ______ positions in foreign companies.

     is to struggle.

The little boy burst         .

Before becoming a pilot, he spent quite a long time ____.

During the day, we’ll walk across the land, ____ the footprints of big animals.

During his first trip to China, President Obama discussed some key global issues such as economic recovery, climate change, _______ nuclear weapons in his talks with Chinese President Hu Jintao.

During the dialogue with Chinese youth in Shanghai, President Obama announced the U.S. would expand the number of students to study in China to 100,000 _______ ties between the two countries.