She is working hard all day long, which will surely ______her success in her future work.

I’ve lived here three years. How about you— I have lived here six years ago.

You look so worried, what’s wrong—More and more people like me become to worry aboutthe __________ pollution after the haze (雾霾)appeared in Beijing and some other cities in China.

elt sad over the loss of photos shehad shot in Australia, ______ that was a memory she especially treasured.

Beijing, the capital of China, is one of _____ cities in the world.