选择合适的句子补全对话。
A: Do you want to visit the UN building in New York?
B:
1．.
A: What a big building!
B:
2．!
A: Yes. Here’s a flag from China.
B: There are flags from
3．.
A:
4．. They are from 193 countries. They make a
5．.
| A．big family |
| B．Yes, we do |
| C．Look at all the flags |
| D．all around the world |
| E．That’s right |
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