—What’s the ________ river in China?
—The Yangtze River.
long
longer
longest
—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________