一、
二、
三、1、 right
2、 small
3、 happy
4、 crossing
5、 first
6、 buy
7、 swimming
8、 dictionaries
四 、1、 walk/on foot
2、 turn left
3、 go straight
4、 traffic lights
五、
六、1、 going
2、 goes
3、 Don't go
4、 go
5、 find
七、1~4:B;C;C;A
八、1、 Are they going by bus or on foot? /Are they going on foot or by bus?
2、 They should turn left at the crossing.
3、 The little boy is waiting for his mother.
4、 Please come to the police station. /Come to the police station, please.
5、 I'm in front of the restaurant.
九、1~4: F;T;F;F