看图，根据对话打“√”或“×”判断对错。
Liu Yun is asking to a policeman.
Liu: Excuse me. Where is the ZhongBai Supermarket, please?
Policeman: It’s west of the hospital.       
Liu: Is it far from here?  
Policeman: Yes.
Liu: How can I get there?
Policeman: First, turn left and take the No.16 bus at the bus stop. Next, get off at the hospital. Then, cross(穿过) the street. You’ll be in front of the post office.
Liu: Thank you.  
Policeman: You’re welcome.
(    )（1）The post office is next to the supermarket.
(    )（2）The Supermarket is west of the hospital.
(    )（3）Liu Yun goes to the supermarket on foot.
(    )（4）Liu Yun asks a policeman for help.