根据下面的对话内容，从方框内的选项中选出最佳选项，使对话完整通顺，其中有一项为多余选项．
A：（1） ．
B： Yes， I'd like to buy a coat．
A： What size do you take？
B： （2） ．
A： How about this one？
B： Sorry，（3） Do you have a brown one？
A： Sure，here you are．
B： I like it very much．（4） ．
A： 180 yuan．
B：It's too expensive．
A： Theres a sale on today．（5）
B：OK，I'll take it．
A．I don't like green B． Can I help you？ C． Everything is half price． D． What's the price？ E． Small． F． What's the matter？ |
A： Excuse me， do you know where the Dazhou Museum is？
B： Sure，（1）
A： Could you tell me how to go there？
B： Certainly． Go along this street and tum right at the third turning． Then walk until you see the building of Dazhou TV station（2）
A： Oh， you mean it's across from the building of Dazhou TV station？
B： Exactly．
A：（3）
B： Two kilometers．
A：（4）
B： No． You'd better take a taxi． It's fast and convenient．
A： Great! Oh， and one more thing． What time does the museum close？
B： （5） You' d better ask for the detailed information in the museum．
A： Thank you very much．
B： You're welcome．
（1） （2） （3） （4） （5）
A． Can I walk there？ B． How far is it from here？ C． It's next to the building of Dazhou TV station． D． It's on Jinlong Road． E． It's opposite the building of Dazhou TV station． F． Perhaps at 8 p．m． G． Haw can I get there？ |
Do you have a tail？ Of course not， we know． But tails are like opinions． actually， everyone has them： fishes， birds， most reptiles， and even some of our closest relatives．
Since tails first evolved（进化） at least 500 million years ago． Geckos （壁虎）use them to store fat， birds use them to steer through the air． But for most mammals （哺乳动物），（1） Yet， as you get closer to humans on the evolutionary tree， tails disappear， Gorillas（大猩猩）don' t have them， and neither do chimps（黑猩猩） or any other apes （类人猿）， including us， of course． To understand why， take a look at how we walk．
（2） walking like this gives us a huge advantage because unlike four﹣legged animals，which have to pour energy into every step they take， two legs take advantage of gravity（重力），which does some of the work for us． You see， each time we take a step， gravity pulls us forward．The end result is that when we walk， we use around 25% less energy than walking on all fours， and this way of getting around also totally eliminates（淘汰） the need for a tail．
It's said that you can still see a reminder of a time when our ancient ancestors had one． Just look at a human spine（脊椎）．（3） That's your tailbone． It's all that's the rest of our tail．
Now， babies are born with what looks like a tail， but that's not what's really going on． Most often， these tails are actually a parasitic twin（寄生物）． These types of tails usually form as a birth defect（瑕疵）．（4）
So the tail of humans has gone， it's the result of evolution millions of years Will humans be much taller， stronger or smarter in the future？
| A． Nowadays， humans can walk completely upright． B． And in these situations， doctors will advise to remove the tails with no harm to the babies． C． they serve one major purpose﹣﹣balance． D． You can see how the last few bones are partly fused（融合） together． |
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