Western nations have older and shrinking populations since they entered the 21^stcentury and their ____________ birth rates have also posed problems. A: flowing B: fluctuating C: floating D: drifting

“21 Century Cup” English Speaking Competition is sponsored by 21st Century.

In Unit 1, we learned that The Belt and Road Initiative includes the Silk Road Economic Belt and __________________________. A: 21st-Century Trade Sea Road B: 21st-Century Maritime Silk Road C: 21st-Century Silk Road on the Sea D: 21st-Century Submarine Silk Road

‌What is the full name of the Belt and Road or the Belt and Road Initiative?‍ A: The Silk Road Economic Belt and the 21st-Century Maritime Silk Road. B: The Silk Road and the 21st-Century Maritime Silk Road. C: The Silk Road Economic Belt and the Maritime Silk Road. D: The Silk Road Economic Belt and the 21st-Century Silk Road.

In the preliminary contests of “21 Century Cup” English Speaking Competition, the top 5 with the most online votes can advance to the next round directly.

In the middle of the 21 century, the vast majority of the world’s population _____ cities rather than in the country. ( ) A: are living B: will have lived C: have lived D: will be living

We live in ( ) A: the twenty-first century B: the century twenty-one C: century twenty-one D: the century twenty-first

What time would he like to leave？（） A: Tuesday. B: The 20th of December. C: The 21 st of December. D: Next Thursday.

【单选题】In what century is the story of Hester Prynne set? A. The sixteenth century B. The seventeenth century C. The eighteenth century D. The nineteenth century

In the years from ___________the late 19th century to the early 20th century, when James lived and was engaged in literary creation, the major American and European capitalist countries entered the stage of imperialism. A: the late 17th century to the early 18th century B: the late 18th century to the early 19th century C: the late 19th century to the early 20th century D: the late 20th century to the early 21th century