gwd1-20

Rivaling the pyramids of Egypt or even the ancient cities of the Maya as an achievement, the army of terra-cotta warriors created to protect Qin Shi Huang, China’s first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete them.

took 700,000 artisans more than 36 years to complete them

took 700,000 artisans more than 36 years to complete it

took 700,000 artisans more than 36 years to complete

700,000 artisans took more than 36 years to complete

to complete them too 700,000 artisans more than 36 years

Here, could anybody tell me why the key is B rather than C?

Usually we say " It took me ten minutes to go to school" and " The task is too difficult to complete". Here, why should we supplement "it" after "complete"?

Thank you for your reply!

usdream mm，

请先参考置顶贴中前辈们的精彩讨论，如果仍未能解决你的问题，再把原题目顶出来。

885提问总结
http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=27532&page=1

补充题250题
http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=27505&page=1

GWD讨论汇总
http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=56794&page=1

如若有搜索问题，请参考。

http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=24247&page=1

请按照标准方式发帖，即方便大家回复，又方便后人查阅参考。

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谢谢！

祝你复习过程顺利、愉快！