New Words and Expressions 生词和短语
your possessive adj. 你的,你们的;
isn't =is not 不是
pen n.钢笔
pencil n. 铅笔
Yes affirmative rejionder是的
hat n.帽子
it pron.它
coat n. 外套
No negative rejionder 不
mobile n. 手机
not negative particle不是
ruler n.尺子
Whose? pron. adj.谁的
book n. 书
it's =it is它是
bag n.书包