_____ you can chat with your friends, makes communication easy

He knows _________ English ________ French. But he’svery good at Japanese.

_________ scientist Tu Youyou won the Nobel Prize for medicine (诺贝尔医学奖)_________ October 5, 2015.

010 Shculture, and it has alsoprovided a fantastic model for Expo 2015 Milan ____________managing andorganizing events of this scale.

On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .