Reading a paper book may be a forgotten luxury for many people thanks to today's busy lifestyles     1     listening to a book while shopping or jogging is a growing trend. Now, audio books (有声书) can be easily downloaded from the Internet at the same, if not     2     (low), prices as the print editions.

Mary Beth Roche, publisher of Macmillan Audio, says many of their     3     (read) use audio books as a “multitasking tool", a way to consume books when their eyes are busy. For others, whose work may involve spending lots of time     4     (look) at the screen, audio books area way to relax. "It's sort of nice to sit back and have a story     5     (tell) to you," said Roche.

In the United States, audio books     6     (become) a serious business for a long time     7     (simple) because Americans on average spend so much time in their cars. "It is a good way for consumers to make the time in traffic quality time,” said Roche. “Even way back when it was the cassette and then the CD, the number one place    8     people listened was in car. When audio books became available     9     the digital form, people started using     10     during other activities-- when they are shopping, jogging, performing household tasks and so on.”

It's time to reconsider food. Around the globe, food problems threaten wildlife, wild places and the planet itself. Today, 7. 3 billion people consume 1. 6 times     1     the earth's natural resources can supply. By 2050, the world's population     2       (reach) 9 billion and the demand for food will double.

So how do we produce more food for more people without     3     (expand) the land and water already in use? We can't double the amount of food.       4     (fortunate), we don't have to—we just have to double the amount of food available now instead.       5     short, we must freeze the footprint of food.

In the near- term, food production is enough to provide for all, but it doesn't reach everyone who needs it. About 1. 3 billion tons of food     6     (waste) each year—four times the amount     7     (need) to feed the more than 800 million people who are     8     (hunger) .

By improving efficiency and productivity while reducing waste and shifting consumption     9     (pattern), we can produce enough food for everyone by 2050 on roughly     10     same amount of land we use now.

As is known to all, a positive parent-child relationship is     1     (benefit) to the physical and mental     2     (grow) of children, but keeping a healthy parent-child bond     3     (need) the efforts of both parties.

Parents should take the responsibility     4     (improve) their relationship with the children. What matters is spending quality time with their children,     5     tight their schedule is. For instance they can eat     6     (meal) together, go to sporting events together or watch their children's favorite TV shows together,     7     can contribute greatly to making their children feel safe and     8     (love). Children, on the other hand, should let their parents know they appreciate what their parents     9     (do) for them. If possible, they can give their parents a gift on a special day or help with housework     10     a regular basis.

No healthy parent-child relationship is without conflict. But as long as parents and children make a joint effort, they can settle the conflict and enjoy their time together.

Each time I take the underground I find myself     1     (surround) by dozens of passengers playing smart phones. They almost won’t even give a glance at the outside world. You may think it is normal to play smart phones     2     (kill) time. What’s worse, when I talk with some of my friends, they talk as playing, which is really an     3    (annoy).

I really miss the old days when I     4     (chat) with some passengers on the train. Now things are different. Everyone just concentrates     5     their smart phones. When taking with them,     6     seems that you are disturbing their playing smart phones. I could not just blame them for I am moving to be one like them. Sometimes I just feel we     7     (large) ignore our neighbors and want to keep in touch with     8     (distance) strangers though he Internet. We care about the things far away but pay no attention to the needs nearby.     9     awkward the situation is! In a way we     10     (control) by smart phones now. Are you experiencing the same situation like me? Do you have any ways to avoid that?

With the rapid development of the Internet, more and more teenagers make friends online nowadays. Some people say it's good to do that, while others think it's     1     (harm) especially to school pupils.

Some consider that making friends online is a modern way to share friendship     2     others. They can express their thoughts     3     (free) to improve social skills and fluency in English. On the contrary, some strongly believe it is     4     waste of time to make friends through online communication and what's worse, those so-called “friends” are likely to cheat you after     5     (gain) your trust.

In my opinion,     6     the Internet is good or not depends on how we use it. If it     7     (use) properly, we can communicate with people that come from every corner of the world, and share life experiences. Of course, however, since the Internet was born, many bad men     8     (make) use of it to do something bad. So we must learn     9     (determine) true or false and avoid being hurt.

In conclusion, every coin has two     10     (side). So does the Internet. If used in a proper way, the Internet has more advantages in seeking friendship.

According to a report released by the United Nations, there were 815 million undernourished（营养不良的）people in the world in 2016. Yet, 1.3 billion tons of food     1    （waste）every year around the world， which is about one-third of all food produced each year, according to the UN's Food and Agriculture Organization.

    2    （get）a better understanding of different countries’ food waste problems, the Economist Intelligence Unit recently surveyed 34 nations according to their food system sustainability（可持续性）. According to the report，France topped the list of food sustainability，followed by Japan and Germany.

The    3    （perform）of these countries is largely related to their policies to deal with food waste. For example，France was the first country to pass laws to ban（禁止）food waste. In France, it's illegal for supermarkets to throw away    4    （sell）food, and French restaurants must provide doggy bags for people's leftovers.

Germany is trying to deal with the problem by reforming expiration dates（到期日）. “We found in our study that many people believed they should throw away products    5    the `best before' date has expired,” Martin Kranert, chair of Stuttgart University's waste management department, told Deutsche Welle. “This is not at all case, and such a lack of knowledge is the first thing     6    has to change.”

Some countries are still falling behind when it comes to     7    （prevent）food waste, however. For example, the United Arab Emirates wastes the most food, with each of its citizens throwing away about 1,000 kilograms every year     8    average.

China has been working hard to reduce food waste. In early 2013, the country's Clean Your Plate Campaign started,     9    （encourage）people not to waste anything on their plate.

“If people are more aware of the amount of food waste they produce and everyone plays a role in reducing their personal food waste, we can do     10    （well）as a community,” Joyce Chan from the Foodlink Foundation, a Hong Kong charity dedicated to reducing food waste, told China Daily.

Li Jiaqi, a star in live-streaming(网络直播), knows how       1    (draw)the audience's attention. Each time, he introduces a new item,he promotes (推销)it     2     (direct), “Buy it - just buy it! It looks super, super, super good!”

In the month       3    (follow)the shopping festival, Li’s promotion     4    (drive) over one billion yuan in sales on Taobao Live.

As a new way of shopping, live-streaming has proved successful,    5     has led more companies to use online influencers to promote their products . The rise of commercial live-streaming is partly based on convenience. Any product can       6    (buy) during live-streams with just a couple of taps and swipes. Without the advantage,     7     (customer) may give up an item if its description does not provide enough information.

A convincing live-streamer together with limited-time discounts or lucky draws also     8    (account) for its popularity. Those tricks help persuade people to shop through live-streaming.

For now, there is still some doubt     9     live-streamers can really take responsibility for their broadcasts or not. However, buyers are quick to make judgements. “I don’t plan to stop watching Li's live-streams. But out of     10    (curious) , I also do my own research instead of shopping immediately,” said a Mr. Li, who often does shopping online.

The number of international students in search     1     higher education in China has been increasing in the past ten years. For many foreign students they think highly of Wuhan University in Hubei province because of     2    (it)learning and social environment.

Goh Qianxuan from Singapore     3    (select)to be the president of the Wuhan University Singaporean Students Association and the Chinese Language and Literature Student Union during her four years of studying in Wuhan,     4     gave her the chance to work     5    (close)with students from other countries. "I didn't come to Wuhan just     6    (get)good grades," Goh says. "being part of the local student communities and seeing how things are done have really helped me to better understand Chinese people and China."

The university also offers various activities to them. Goh says she felt     7    (little) like a foreign student only after a year in the student union. "The environment is truly good for Chinese studies，" she says. "The four     8    (amaze)years I spent in Wuhan has helped to build    9     strong foundation for my life and career. This experience has proved many of my former ideas wrong as I now understand the main reasons behind the Chinese ways to deal with certain     10    (matter)."