China’s rich civilization ________ the world with a happy surprise at the opening ceremony of the 2008 Olympic Games.

（2006年湖北，31） __________ fired, your health care and other benefits will not be immediately cut off.

Mark is three years _____to me.[ ]

.—-Who are those people gathering infront of the building—–A group __________ itself the youthvolunteers.

of language learning,­­­­________ has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.