Teacher: Boys and girls, we are going to have a party in our class this Sunday.

Class: Great! What is it about?

Teacher: It’s about culture difference.

Class: Sounds interesting!

Teacher: Of course, but we must prepare for the party first. Who would like to make invitation cards?

Ann: I can do this.

Teacher: Are there any volunteers(志愿者) to go to buy some food and drink for the party?

Tom: I can do that.

Teacher: Great! Boys and girls, we must surf the internet to find some information about culture difference before the party, and then we can discuss these in the party.

Class: OK!