用适当的单词或短语补全对话。
A: Guess what! I just got invited to my teacher’s house for dinner.
B: Oh, how great!
A: But what do you do when you’re _______ to ________ house here?
B: Well, it’s the custom to bring a small gift.
A: Really? For example?
B: Maybe some _______ .
A: What kind of flowers do I________to buy?
B: Any kind of is OK.
A: And can I ________ a friend along?
B: Well, if you want to bring someone, you’re expected to call ________ to ask if it’s OK.
A: I don’t know what to _________ .
B: I think a shirt and tie are OK.
A:  _________ everybody else is wearing jeans and T-shirts ?
B: Oh, you shouldn’t worry about that.
A: Thanks very much .
B: You are welcome. I hope you’ll enjoy yourself.