Hangzhou is recognized as the “City of Well-Being” in China. Hangzhou made its name    1    (know) to the world in 2016 by hosting the G20 Summit. Blessed with pleasant climate and few wars, Hangzhou has gradually formed    2    (it) own urban character.Unlike busy Shanghai, you will slow down and relax once you are here. It seems that Hangzhou people don’t have many things to rush to in their    3    (day) life. No wonder Hangzhou is expanding    4    (annual) by 500, 000 to 600, 000 people.

The lifestyle, however, was laid down by two historical men of letters. One was Bai Juyi,     5    rebuilt the West Lake and made a new bank    6    (benefit) the locals. People love him. When it comes     7     him, it doesn’t sound like one is talking about a person who    8    (live) a thousand years ago. The other was Su Shi. His open-minded personality    9    diligence for his people left many much-told tales. Seemingly,     10    (mention) his name gives people joy even after a thousand years.

Surely, it will be even more brilliant in 2023 when it hosts the 19th Asian Games. Let’s look forward to it.

2 . Ask people to name the world's tallest peak and anybody with sound general knowledge will name Mount Qomolangma. But quiz them on its exact __and many will be not sure.

In 1975, Chinese surveyors __ that Mount Qomolangma （Mount Everest） was 8848. 13 meters high. As __ improved, satellites, photoelectricity, radars and gravity measurement technologies were __ to get more exact figures. Of course, someone still had to carry __ to what is the world's rooftop.

In 2005, a Chinese team scaled Qomolangma and found that it was not as high as that, as they __ the height to be 8844. 43 meters. Scaling Qomolangma is no __ task. The average air temperature there is -29 degrees Celsius, even four degrees_____ than in Antarctica. The snow there is 4 —5 meters thick and hurricane-like __ blow all the time. Team members were training to __the extreme conditions.

In a nutshell, measuring the Qomolangma's height is a tall order, __ huge amounts of money and human resources, But it is worth the_____. Qomolangma is the perfect __ for observing crustal （地壳的）movements. And changes to the peak's height could __ whether the two plates are heading toward or away from each other.

Besides, the condition of snow and other natural materials at the top is an indicator of upcoming climate change on the Tibet-Qinghai Plateau. That's __ measuring the Qomolangma's height is so significant. Put to good use, it can benefit mankind.

What defines a healthy city Is it a place with a lot of open spaces    1    people can exercise and enjoy the fresh air .A place with little or no pollution .A place in which people can     2    (free) socialize and express their ideas Perhaps, it’s all that plus more. Other considerations are the availability of health and fitness facilities, an excellent healthcare program and sincere efforts by    3    local government to actively promote health and wellness among its citizens. Of all the cities in the world, one of the top six     4     (healthy) cities is Copenhagen, Denmark.

Copenhageners love to walk. Foot traffic accounts    5    80% of all traffic in the Copenhagen city center. Those who prefer can also bike. It is estimated that more than a third of all work trips in Copenhagen    6    (carry) out on a bike. As for the climate here, the city does not have the blessing of pleasant weather all year round.    7    everything starts to freeze, it turns several city squares into huge skating fields. The frozen parts of the city also make    8    easier for residents to skate around. The city also has museums and art galleries for the kids and    9    (grown-up). It has the Royal Danish Academy of Fine Art and the Royal Library housed in a rather grand building    10    (call) the Black Diamond.