补全对话。
根据对话内容,选择恰当的句子补全下列对话。
A:Jack, I hear that you've just come back from Beijing.1.__________
B:Oh,it's fantastic. It's one of the most interesting places I have ever seen.
A:2._____________________
B: I went to many places, but I'm interested in the Great Wall most.
A:Could you tell me something about it?
B:Well,it is one of the greatest wonders of the world.
A:3. ___________.Tell me some more about it.
B:4.____________________________ It's about 4,000 miles long and it looks very wonderful.
A:5._____________________________
B:It's about 2,600 years old.
A. Where did you go?
B. How old is it?
C. How high is it?
D. When did you go there?
E. Sounds interesting.
F. How do you like it?
G. It was built by the first emperor of China.