Ⅳ. Complete the passage.（阅读下面短文，在空白处填入一个适当的单词或填入括号内单词的正确形式。）
For those who love travelling, especially rail(铁路) travel, China in 1987 was a kind of place that could not be missed. In 1987, China was still 1. (use) steam trains. Most people 2. (probable) didn't think China could enter the age of high-speed train in such a short time. So it made people from many countries 3. (surprise). Bruce Connolly, a photographer(摄影师) from Scotland, was one of them.
He came to China in 1987. Then he started his travel around China. 4. then, he has travelled to many areas of China. He recorded every important moment in his eyes by 5. (take) photos. During his travel in China, Connolly 6. (find) that China was very different from what he saw in photos. In the early years of his journeys, most Chinese people were always curious 7. foreigners who visited China. By now, foreigners can be seen more often in cities. There are lots of foreigners living or travelling in these big cities. They are no longer strange to Chinese.
Another great change that Connolly has 8. (feel) in China is the wide use of new technologies. People use high-technology 9. (product) everywhere and do everything with their smartphones. China has become one of 10. strongest countries in the world. Chinese people have used their wisdom to tell the world that they are going to have a bright future.

1. using 2. probably 3. surprised 4. Since 5. taking 6. found 7. about 8. felt 9. products 10. the