The Great Wall of China is about __________ KM long.
A. 18,196
B. 19,196
C. 20,196
D. 21,196
The Great Wall of China is about __________ KM long.
The Great Wall of China is about __________ KM long.
A. 18,196
B. 19,196
C. 20,196
D. 21,196