用适当的单词、短语或句子补全对话.
A:Hello!1._____________?
B:This is Karen speaking.
A:2.________ are you going for your vacation?
B:I have no idea.What about you?
A:I'm going to Sanya.
B:What are you doing there?
A:I am 3.__________ beach volleyball,eating seafood,and going sightseeing.
B:That sounds great.4.___________?
A:My parents and my sister.
B:I hope you enjoy yourelves.
A:5._________________.