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.

It was reported that the government official expressed the deepest ______ to the families of those killed and injured in this attack.

Your _____ as a student will be excellent if you develop a habit of reflecting on how you learn.

Ted woke up with a ________ and felt for the night switch.

24．We have strong __________ for believing that the mine accident in Heilongjiang was due to the poor management.