题目内容：

情景对话

A: Hello.Nancy! I haven’t seen you for a long time.                    1.?

B: I have been to Shanghai.

A: Really? Did you see the Jin Mao building?

B:                       2..It’s really a modern wonder of the world.

A:                       3.?

B: About 420.5 metres high.

A:                       4.?

B: I have no idea.Maybe 88 floors.

A:                       5.?

B: Yes, it is.But it’s the fourth tallest building in the world.

A: Oh. How exciting! I really hope to go there to see it myself.