Q1) The economy of the People's Republic of China is the fourth largest in the world when measured by nominal GDP. 
Q2) The economy of the People's Republic of China is the fourth largest in the world when measured by nominal GDP.
Q3) The economy of the People's Republic of China is the fourth largest in the world when measured by nominal GDP.
Q4) The Great Wall of China, one of the greatest wonders of the world, stretching approximately 6,700 kilometers (4,163 miles ) from east to west.
Q5) The Great Wall of China, one of the greatest wonders of the world, stretching approximately 6,700 kilometers (4,163 miles ) from east to west.
Q6) The Great Wall of China was built 2,000 years ago.
Q7) Since then, the Great Wall has served as a monument of the Chinese nation throughout history.
Q8) Since then, the Great Wall has served as a monument of the Chinese nation throughout history.
Q9) A great army of manpower, composed of soldiers, prisoners, and local people, built the wall.
Q10) A great army of manpower, composed of soldiers, prisoners, and local people, built the wall.
