gwd 1-20

I am really wondering why nobody asks about this problem:

Q20:

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.

good to hear your opinion,tianwan! People seem to have a lot of discrepancies  in GWD Zhenti's. Most of those questions are against the GMAT principles I have learned from OG and LZM. This is really frustrating. WHat do you think of GWD? I tried only one test. I am wondering whether I should continue.

I don't think GWD is a must-be. However, if you have the chance to do it and discuss it, why not do it as an auxilary means to broaden your vision? Though the key is not accurate, lack of precise answer may force you to think more deeply. An obvious drawback is the huge time-consumption. So, it is up to you to find the optimal point,  considering your resource of time.  

Remarks expected.....

I stand firmly with you guys. See the following example from Longman:

The building took two years to complete.

但是原句有them, 所以尽量保留原句的代词,adj,adv等, 所以保留them改为it,

而且感觉作者在这里想强调artisans 完成了army, 因为complete 离真正的宾语army实在是太远了, 作者想保持意思上的连贯

不知道这样理解行不行, 请NN指教!

the main question in Q20 is that take sb. sometime to do someting.

c

it应该省略。