请阅读下面三段话将其与方框中的主题匹配 The police warned last night that heavy snow is on the way.

people are advised...
my brother is not just my relative. he's my best friend,too...
when meeting someone for the first time in a social situation, it is not necessary to shake hands .however in business,it isexpected.
sudject the number
family
social etiquette
weather

1.The police warned last night that heavy snow is on the way.people are advised...
2.my brother is not just my relative. he's my best friend,too...
3.when meeting someone for the first time in a social situation, it is not necessary to shake hands .however in business,it isexpected.
sudject the number
family 2
social etiquette 3
weather 1

The police warned last night that heavy snow is on the way. weather my brother is not just my relative. he's my best friend,too... family when meeting someone for the first time in a social situation, it is not necessary to shake hands .however in business,it isexpected social etiquette