My decision to travel around China was merely due to my being     1     (curiosity)about the country. Before I paid a visit to China, I took many aspects     2     account.

After travelling from Beijing up to Xi’an, I wanted to challenge myself by choosing a smaller town—Xiahe in Gansu Province. I arrived in Lanzhou at around 5 am, but only     3     (tell) that there were no buses to Xiahe. I managed to see a policeman and attempted to explain to him the destination     4     I planned to go in simple English, praying that he would understand. I wasn’t sure that he did but I just followed him anyway as I had no choice. He took me on a bus but not     5     (know)where I was going, I was quite anxious. Fortunately, I met a student who told me in English that the policeman was taking me to another bus station where I could take a bus to Xiahe. During this conversation a third man said he was also a policeman and would help me buy a ticket. But as he was not in uniform, I was afraid that he     6     not be a policeman. I was a little doubtful about his real identity. The uniformed policeman’s immediate     7     (recommend) was that I should go with the third man. Having got off the bus, I followed the so-called policeman. But at this point, he disappeared and I was left in the middle of nowhere. I stood there, feeling a little scared. Around one minute later a police car came and stopped right by me. It was the policeman who didn’t wear uniform.    8     (incredible) he told me to get into the car and he dropped me directly at the bus station, and helped me buy a ticket.

This is one of many things that I     9     (go) through in China so far. Regardless of different cultures, there was one thing that would always stand out—kindness. The people I met showed their kindness and friendliness. I also saw them so     10     (devote)to their work.

In AD79, the ancient Roman city of Pompeii, in southern Italy,     1     (destroy) by a volcanic eruption that buried many of its buildings. Archaeologists (考古学家)     2     (observe) it for almost 300 years but now they have a new tool for     3     (understand) how Pompeii might once have looked—virtual reality (VR).

Researchers Danilo Campanaro and Giacomo Landeschi, from Lund University in Sweden, used data that were collected by drones (无人机) to create a 3D computer reconstruction of one of its most amazing buildings. They then fed the reconstruction into a video game system     4     a VR model is made. The idea is not just to recreate the buildings     5     to understand a bit more about how Roman people might have experienced them. Campanaro and Landeschi asked     6     (volunteer) to take a virtual tour of the house in both summer and winter light. The researchers used special eye-tracking technology to record     7     (exact) which areas people looked at and for how long. From this, the team concluded that the building used clever design     8     (draw) attention to the very objects     9     showed off the wealth and status of its owner—perhaps a man called Lucius Valenius Flaccus,     10     ring was found in the ruins.

A concrete bookstore under    1    （construct）in Wisdom Bay innovation park in Shanghai will be the first 3D-printed bookstore in China, and it is due to open to the public at the end of January, 2021.

"The bookstore was printed on-site in three weeks,” He Yuting,    2    is responsible for this project, from Tsinghua University School of Architecture in Beijing, told the Global Times on Thursday. The printing work has finished and the bookstore will    3    （decorate）,   He told the reporter.

    4    （compare）with simple works such as a 3D-printed flower basin, the bookstore is an innovative attempt in the architecture field, as the 3D-printed architecture is    5    （cheap）than conventional construction techniques and saves time, He said.

    6    makes this bookstore so unique, is that “we used fiber concrete to resist compression,” He added,    7    （note）that the floor also has a heating system.

He mentioned the 3D-printed bookstore is as safe as traditional concrete construction based on their experimental data in    8    （term）of structure and earthquake resistance.

So far, different teams in France, Switzerland and Russia all    9    （have）similar research on 3D-printed concrete technology,    10    China’s research and achievements in this field are among the best in the world, according to He.