[解析]
CB
W:This food looks really delicious.
M:Yes,it does.The bride looks so happy,too.
W:Are you a friend of Janet?Yes, I am. We went to high school together.How about you?
W:I am a friend of hers too from college,but I have the feeling we have met before somewhere.
M:Have we?Were you at Janet's 21st birthday party?
W:Yes,I was. I remember now. Nice to meet you.Finally,I am Mary.
M:Nice to meet you too.My name is Peter.