国际空间站升空20年啦！ ……

信不信由你
How long do lions sleep? About 20 hours a day! ……

It takes a 10-year-old kid about 20 minutes to fall asleep. ……

It takes about 20 seconds (秒) for a chameleon (变色龙) to change colors. ……

信不信由你A dream is usually about 20 minutes long. ……

ZAMBOANGA, Philippines — Muslim rebels abducted 20 people including three Americans from a Philippine island resort on Sunday. The Philippine Government on Monday announced a reward ofUS$20,000 ……

A篇：1-5 CDACB 6-10 DACDA 11-15 BDCAB 16-20 DACBDB篇：1-5 CADBC 6-10 ABDAD 11-15 CDCBA 16-20 BCDBA ……

It takes a 10-year-old kid about 20 minutes to fall asleep. It takes a 10-year-old kid about 20 minutes to fall asleep.    ……

The Amazon rainforest has been described as the “lungs of our planet”. More than 20% of the planet’s oxygen is produced there! ……

The Amazon rainforest has been described as the “lungs of our planet”. More than 20% of the planet’s oxygen is produced there! ……

December 20, 1999:The Chinese government resumed (恢复) the exercise of sovereignty (主权) over Macau. ……

Jan 20, 1885: The roller coaster was patented (获得专利权) by American inventor L.A. Thompson. ……

1-5 CCBBC 6-10 ACBAA 11-15 CABCA 16-20 BBACB ……

1-5 CBABC 6-10 BAACC 11-15 ABCBA 16-20 CABCA ……

CHINA DAILYCHINA DAILY“入世”20周年，中国与世界双赢。“入世”20周年，中国与世界双赢。Over the last 20 years, China has proven to be a pioneer in the World Trade Organization.Over the last 20 years, China ……