根据对话内容，在空白处填写一个适当的话语（话语可能是一个句子，也可能是一个短语或一个词），使对话完整。

A: Hello! May I speak to Tom?

B: Yes, speaking.  1  ？

A: This is Li Ping.  I'm calling you up to ask for some help.

B: What's up?

A: My American friend. Ann, invited me to dinner this evening.  I don't know what to  do.  2  ？

B: Sure! In the USA, people go to dinner neither too late nor too early. You are supposed to arrive

there   3  .

A: I see.  What do you Think I should bring with me?

B: You don't need to take anything.  If you like, you can take some flowers.

A: Is it proper to take some roses?

B: Of course.  That's pretty good.

A: I'm not    4   using a knife and fork.  I'm afraid to be laughed at.

B:   5   .  They can understand you because you're foreigners.  By the way, it's impolite to make

noise when you're eating.  Especially you talk with food in yourmonth.

A: Thank you.  I've learned a lot from you.