2017 witnessed the 45th anniversary of the     1    (establish) of Sino-German diplomatic relations. Many     2    (activity) with Chinese culture as the theme were held in Berlin, the capital of Germany. When     3    (walk) in Berlin, people can really feel that this city deserves its title as the largest city in Germany. The history of Berlin could     4    (trace) back to over 800 years ago. In 18th century, Berlin became the capital of the Kingdom of Prussia. In 1871, after Otto Von Bismarck, Minister President of Prussia, unified the German States. In modern times, Berlin became the city with the greatest vitality in Germany because     5     its emerging buildings and dynamic culture.

In the very center is the famous BrandenBurg Gate, the construction of     6     started in 1789 and was completed in 1791. This BrandenBurg Gate has became a symbol of Germany. If people take     7     look at the modern Germany history, they can find that this gate was     8    (repeat) involved at critical moments.

After World WarII, the Berlin Wall stood in front of the Brandenburg Gate, and remained a symbol of separation for as     9    (long) as 28 years. After the German reunification, this area around the gate was finally restored according to     10    (it) original design.

In Sarek National Park, I wake up to the sound of the wind    1    (buffet) the cloth of my tent. Standing at the edge of the mountain, I find    2    (branch) of the Rapa River flowing through the valley below. Sarek’s mountains used to     3    (cover) by vast sheets of ice. Around 9,000 years ago, this ice melted, with about 100 glaciers     4     (leave) behind. Soon after, reindeer began to arrive. Following the reindeer     5     (be) the Sami people, who made this territory their home. In 1909,    6    (keep)the land’s natural state, the government made Sarek a national park.

For hundreds of years, the Sami lived     7     reindeer. With reindeer on the move, the Sami would pick up their tents and accompany them. Today, most Sami have houses in villages near Sarek and live     8    modern life. But every spring, a small number of Sami still follow their reindeer into the valleys of Sarek,    9     they live in tents and enjoy their traditions. Nothing could be     10     (good) than breathing the fresh air and enjoying this great adventure in such a beautiful and wild place.

Grand Canal, also called Da Yunhe, is a series of waterways in eastern and northern China that connect Hangzhou in Zhejiang Province with Beijing. Some 1, 800 km in     1     (long), it is the world’s longest man-made waterway. Strictly     2     (speak), not all of it is a canal, though. It was built to enable successive Chinese regimes(政权)     3     (transport)grain from the agriculturally rich Yangtze River and Huai River valleys to feed the capital cities     4     large standing armies in northern China.

The oldest part of the canal lies     5     the Yangtze and the city of Huaiyin in Jiangsu Province, which was     6     (origin)on the Yellow River when that river followed a course much     7     (far) to the south. This section, traditionally known as the Shanyang Canal, in recent centuries     8     (call) the Southern Grand Canal. This ancient waterway was first constructed as early as the 4th century BCE.

It was rebuilt in 607 CE. and has been used ever since.

China’s first great canal system,     9     created a northeast-southwest link from the Yellow River to the Huai River, was built beginning in 605 during the Sui Dynasty(581-618). Known as the New Bian Canal, it     10     (remain)the chief waterway throughout the Tang Dynasty(618-907)and the Northern Song Dynasty(960- 1127).