The 2010 World Expo ________ in Shanghai successfully. It was an honor of all of the Asians.
—Is this your pen? —Yes, __________.
—What’s this in English? —It’s ______pen. It’s _______orange pen.
—is your ruler? — It’s black and white.
—What’s this? —_______________.
下列大写字母按其在字母表中顺序排列错误的是________