Bob: Good afternoon.
Helen: Good1 .
Bob: I2 Bob. Are you Maria?
Helen: No, I' m3 .I am Helen.
Bob: How are you, Helen?
Helen: I' m4 , 5 How6 you?
Bob: I'm OK, too. Helen, this is my sister,7 .
Helen:8 ,Cindy. Nice to meet you.
Cindy: Hi, Helen. Nice to9 you, too.
Helen: See you later（再见）.
Cindy: See10 .
