从方框中选出适当的句子补全对话，有两项多余。(10分)
A: Excuse me, are you Sam?
B: Yes, I am.   小题1: 
A: My name is Bob.
B:   小题2: 
A: Nice to meet you, too.   小题3: 
B: No, I’m not.   小题4:  Where are you from?
A: I’m from Shanghai.   小题5: 
B: Thank you.

A. How do you do? B. Welcome to Beijing. C. Welcome to Shanghai. D. Are you from England? E. What’s your name? F. I’m from the U.S.A. G. Nice to meet you.