Jade is the highest award in Chinese culture and medals are the most important prize in Olympics, so medals with jade is the perfect _________ to present the Olympics in Beijing.

That she hadn’t kept her ____ on her work resulted in the failure.

Please don’t speak at one time. George may take the ________ after the two women each say a few words.

I was going to take a photo of the world-famous painting when I noticed a__________ saying “No Photographing”.

China has got a good               for fighting against the flu with its careful and smooth organization.