Lesson 18

Just practise 练习一下

You must wait for the green light. 你必须等到绿灯。

You mustn't cross the street when the light is red. 你不能再红灯的时候过马路。

help old people 帮助老人

keep off the grass 远离草坪

take good care of young children 保护小孩子

play on the street 在街上玩

pick flowers 摘花

litter 垃圾

Let's chant 一起唱吧

ir

The first girl wears a new shirt. 第一个女孩穿了新衬衫。

The second girl wears a new skirt. 第二个女孩穿着一条裙子。

Today is the first girl's birthday. 今天是第一个女孩的生日。

She is as happy as a little bird. 她像小鸟一样开心。