Question #N1327
The Great Wall of China is a series of fortifications that were built over centuries, and it is one of the most recognizable structures in the world. The wall is made of stone, brick, earth, and wood, and it is so long that it can be seen from space.
Which choice best combines the sentences at the underlined portion?
A. The wall is so long that it is made of stone, brick, earth, and wood, and it can be seen from space.
B. The wall is so long, it is made of stone, brick, earth, and wood, and it can be seen from space.
C. The wall, being so long, is made of stone, brick, earth, and wood, and it can be seen from space.
D. The wall is so long, made of stone, brick, earth, and wood, and it can be seen from space.
Correct Answer is: D
Choice D best combines the sentences because it uses a comma to separate the introductory phrase "so long, made of stone, brick, earth, and wood" from the rest of the sentence. This creates a grammatically correct and clear sentence.