—My cousin is good at all his subjects at school, but he never ________.—What a ________ boy! We should learn from him.
—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________