The Great Wall of China, standing as one of the most remarkable wonders of the world, is a  testament to ancient engineering and human perseverance. The Wall, built over several dynasties, (18) _______. Initially constructed to protect against invasions and raids, it now symbolizes the strength and  unity of the Chinese people. The Wall winds through rugged mountains, forests, and deserts, (19) _______. 

Designed with an intricate network of watchtowers, gates, and fortresses, (20) _______. This  massive structure reflects the combined efforts of countless workers and artisans who dedicated their  lives to its construction. Today, the Wall's sections remain well-preserved and mostly intact. Therefore,  (21) _______. 

Visiting the Great Wall offers more than just a view of its grandeur. Tourists can experience the  culture, history, and stories of bravery linked to its existence. Infused with centuries of history, (22) _______, qualities that continue to inspire people worldwide. 

Question 18. 

A. whose more-than-13,000-mile span across northern China 

B. spans more than 13,000 miles across northern China 

C. whose length is more than 13,000 miles across northern China 

D. and spanned across the north of China more than 13,000 miles 

Question 19. 

A. they all attract millions of visitors annually by showcasing a stunning landscape 

B. while it annually attracts millions of tourists and showcases landscapes stunning people 

C. whose attraction for millions of tourists thanks to a stunning landscape annually 

D. showcasing a stunning landscape that attracts millions of visitors annually 

Question 20. 

A. the Great Wall allowed for effective defence strategies and communication between soldiers 

B. soldiers could plan and carry out defence strategies and also communicate better 

C. they turned the Great Wall into a perfect defence strategy and better communication channel 

D. it was these designs and strategies that made it perfect for defence and communication

Question 21. 

A. during ancient times, China's advanced construction techniques were demonstrated 

B. it was proved that ancient Chinese construction techniques were advanced 

C. it also demonstrates China's advanced construction techniques in ancient times 

D. China only demonstrated the advancement of its ancient techniques for construction 

Question 22. 

A. the Wall stands not only as a physical barrier but as a reminder of resilience and innovation 

B. not only a physical barrier but also a reminder of resilience and innovation the Wall stands as 

C. both a physical barrier and a reminder of resilience and innovation are what the Wall stands for 

D. The Chinese see the Wall as a physical barrier and a reminder of resilience and innovation