In western culture,21 was the age________ young people traditionally received a key to their parents’ door, as a symbol of entering adulthood.

The news has spread all over the country _____ Premier Wen Jiabao will attend the Copenhagen summit next week.

Halloween is believed to be a day ______all the spirits come back to the world of the living, and we have the same day in China called “Guijie", the Day of Dead.

The next king of Prussia, Fretrick WilliamⅠ,        the Amber Room belonged, decided not to keep it.

I don’t like the way       he talks and laughs.

He was generous with his time, ______ I was grateful..

Until today we have reached a stage ______ we have almost no rights at all..

Here is my classmate _____ bicycle was lost yesterday.   

In the survey they listed twelve kinds of food _______would affect the work of the brain．

I’m afraid this is the best way ____we can think of ____you.