选用方框中的句子完成对话，其中有两项是多余的。
Li Lei: Excuse me. 1     
Mr. Smith: Yes. And you are.. . ?
Li Lei: I’m Li Lei. Your friend Miss Wu is busy at the moment. She asks me to meet you. Welcome to Hangzhou, Mr. Smith.
Mr. Smith: Thank you.
Li Lei: By the way,2     
Mr. Smith: No. This is my second time. I came here in 1998 for the first time.
Li Lei: 3     
Mr. Smith: I like it very much. It’s very beautiful and famous in the world. And the people here are quite friendly. 4       
Li Lei: I’m glad you like the city. And now Hangzhou is becoming more and more beautiful. 5    
Mr. Smith: I think so. Thank you very much for meeting me.
Li Lei: It’s a pleasure.

A teacher stood in front of his history class of twenty students just before handing out the final exam. His students sat quietly and waited for him to speak.
“It’s been a pleasure teaching you this term,” he said. “You’ve all worked very hard, so I have a pleasant surprise for you. Everyone who chooses not to take the final exam will get a ‘B’ for the course.”
Most of the students jumped out of their seats. They thanked the teacher happily, and walked out of the classroom. Only a few students stayed. The teacher looked at them. “This is your last chance,” he said. “Does anyone else want to leave?” All the students there stayed in their seats and took out their pencils.
The teacher smiled. “Congratulations (祝贺),” he said. “I’m glad to see you believe in yourselves. You all get A’s.”
【小题1】This story most probably took place       .