The impressive collection of literature in the Library Cave at the Mogao Caves in Dunhuang, Northwest China’s Gansu province, ______ one of the most inclusive, advanced and open _______ of the ancient Chinese, says Dunhuang specialist Zhao Xiaoxing.

______ in the Hexi Corridor, the main line of the ancient Silk Road, the caves, a UNESCO World Heritage Site, have been promoting goods and cultural ______between the East and the West for more than 1,600 years.

While the Dunhuang wall paintings have recorded the glories of the past ______ , the more than 60,000 items of literature______ in the Library Cave, or Cave 17, dating from the 4th to the 11th centuries, have kept the ______ original quality through the written word, according to Dunhuang Academy.

The value of the ______ was thoroughly demonstrated during the launch of the Digital Library Cave, a gamelike program ______ enables users to virtually witness, and participate in, the_________ and fall of the Library Cave on the website Digital Dunhuang or via the WeChat miniprogram, Cloud Museum of Dunhuang Caves.

The Library Cave ______ in the mid-9th century and later______ unopened for almost 1,000 years ____ being accidentally discovered by Taoist priest Wang Yuanlu in 1900.The majority of its cultural relics, consisting of Buddhist manuscripts, ______ and economic documents and other delicate and ______items, are now kept in foreign museums.

When the subject of friendship comes up in a conversation, you often hear some form of this complaint: It is hard to make friends as an adult. And if, for whatever reason, you do not _______ your childhood or college friends, you can end up in your 30s (or 40s, or 50s) knowing a lot of people, but being close to very few of them.

It is not hard to understand why. When you are overworked and overwhelmed, the _______ to have dinner with a friend versus turning on Netflix and eating pizza with your spouse (伴侣) can be hard to come by. But the research is clear: Close friendships are _______ to one’s best health and well-being.

“We’re _______ creatures,” said Serena Chen, a professor of psychology at the University of California, Berkeley. “When we’re intimate (亲密的) with another person, we can experience _______ mental and physical reactions in our body, mind and heart.”

But what exactly does _______ mean?

Popular culture is filled with enviable examples: the friend who will take a bullet for you; the friend who you can call in the middle of the night and always count on to be there for you, regardless of the _______; the friend with whom you can share anything.

_______ close friendships (unsurprisingly) do not need to be quite so extreme. “The key to a close friendship is intimacy (亲密), and a big part of intimacy is being able to be fully yourself and be seen and _______ by others,” Dr. Chen said.

Reciprocation (相互性) is also a key element to the ________ of intimacy. That explains why all the “likes” and compliments from your social media friends for something you share online—though they may feel good—don’t necessarily create intimacy because there is no ________ of ideas and feelings, explained Dr. Chen.

Now you may be left wondering, if close friendships really are that vital to the well-being of humans, wouldn’t it make more sense for us to be ________ skilled at making them? One would tend to think so, but it turns out that the opposite may be true: Close friendships are so important to us ________ they are so difficult to form.

According to John Cacioppo, the late social neuroscientist (神经学家) who specialized in the study of loneliness, humans would have evolved a built-in bias (偏见) against easily making friends because ________ an enemy would have been more important than making a friend. “If I make a mistake and detect a person as an enemy who turns out to be a friend, that’s O.K.—I don’t make the friend as fast, but I ________ .”

Dr. Capiocco said in a 2017 interview with The Atlantic. “But if I mistakenly detect someone as a friend when they’re in fact a dangerous enemy, that can cost me my life. Over evolution, we’ve been shaped to have this bias.”

At a conference held in a cross-cultural team, some employees will feel uncomfortable intervening (介入). Meanwhile, others will be_________ to participate. Now, whether you’ll_________ actively not only depends on your personality, but also depends on your_________ patterns.

Adam Goulston, the owner of the Japanese company Seize, says that his_________ is made up of Asians and Westerners. Workers find it hard to_________ during the meetings: I found many members were unprepared to express themselves_________. Even if they _________ to break free from the typical meetings in which the highest-ranking person does most of the talking while others listen, they were_________ by having to talk. Perhaps it was too impulsive (冲动的) or they needed more time to think and prepare an ideal _________. The bigger the meeting, the greater the__________. ”

In general, when it comes to expressing ideas and opinions, employees from individualistic cultures, like Australia or the United States, __________ to say their viewpoints with ease. __________, workers from hierarchical (等级的) cultures, such as India and Middle East countries, are__________ to expressing their thoughts only after their senior coworkers have__________ their points of view. The hierarchical standards__________ a lot in Singapore, too. According to a Reddit user, at the meetings with clients, only senior managers are allowed to speak.

In addition, many Chinese people__________ the rule of “thinking before speaking”, and they’ ll have to make good__________ ahead of the meeting if they have to participate.

If you are a boss with employees from individualistic cultures, you should __________ these barriers and overcome them, because it is particularly__________ if you’ re managing a multicultural team. In that case, be sure to help your employees__________ cultural divides.