B

　　On July 1, 2017, Canada turned 150. That day, more than half a million people visited Ottawa for the country's biggest birthday celebration ever. At the same time, hundreds of parties, fireworks displays, and performances took place across Canada to mark the occasion.

　　As we all know, native people like the Inuit have lived in Canada for thousands of years. About 500 years ago. French and British people started arriving there. They claimed some of the land for their countries. The two countries often fought over control of the land. The British won full control of the area in 1763. But French remains one of the official languages, along with English. Canada became fully independent of Britain in 1982.

　　Over the years, it is now the second-largest country in the world. At more than 5,500 miles, its border with the US is the longest border between the two nations.

Canadians are proud of their country. Canada even made the list of the 10 happiest countries, according to a 2017United Nations report. Located not far from the North Pole, its cold and icy north is home to about two-thirds of the world's polar bears. Its icy and snowy land also helps explain why some of its popular sports are ice hockey, skiing and curling(冰壶)

They are also very proud of the country's history of welcoming people from around the world and of the diverse population. "It reminds us of the values that unite us-openness, and deep respect for our differences," says Prime Minister Trudeau. "Today, and every day, let us celebrate the differences that make Canada strong, divers and proud."

8. What does the second paragraph mainly talk about?

A. How Canada came as a nation B. The official languages of Canada

C. Why explorers came to Canada D. The people who control Canada.

6. What makes the sports in Canada so different?

A. Its special food B. Its special history

C. Its geographic location D. Its various culture.

7. What does the underlined word "they" in the last paragraph refer to?

A. Beats B. Canadians

C. Players D. Americans

8. What is the tone(语气)of Trudeau's words in the last paragraph?