请认真阅读下面对话，并根据各题所给首字母的提示，在标有题号的右边横线上，写出一个英语单词的完整、正确形式，使对话通顺。

M: Well, this is it! What do you think of it?

W: I can hardly believe it's real. I've (76)d        of seeing it ever since      小题1:_________

I saw it in books when I was a child. Just thinking of all this being built

by hand more than 2,000 years ago! No (77)w      it's one of the 小题2:_________

wonders of the world.

M: (78) A     the started building is more than 2,500 years ago when  小题3:_________

China was divided into (79)v     states. Three of the northern states      小题4:_________

built defensive walls along their borders to keep (80)o      the enemies.

小题5:._________

W. But I always thought the wall had been built by Qin Shihuang, the first

(81) E      of China.                                                                小题6:_________

M: Well, yes. In the way, you see, he united the(82)w     country in the小题7:_________

third century B. C. and one of the things he did was to join the (83)s   小题8:_________

walls into one big wall and to build more walls from the east coast right

across the length of north China to the west.

W: It is certainly something any nation could be proud of. I hear this is the

only human(84)c      on the earth that can be seen from the moon.      小题9:_________

By the way, how tall is the wall?

M: The average (85) h      is 7.8 meters; the average width is 6.5 meters小题10:_________

at the base and 4.5 meters at the top. Would you like to go up to the top?

W: Yes! I'd like to have a look from the top.