在对话中填入适当的单词或短语，补全对话。
A: Hi, Mary! Did you go to the concert last night?
B: Yes. I 1._________ with my parents.
A: 2._________ did you like it?
B: Wonderful. Many famous singers sang at the concert. It 3.________ "Saving the Children".
A: What does it mean?
B: The concert was held to 4.________ for poor children. You know many children in the world don't have
enough food.
A: That's true.
B: I think people all over the world 5.________ them.
A: That's right.
1._____ 2._____ 3._____ 4._____ 5._____
