Question 66

Much of the Great Wall of China, which is actually a network of walls and towers, was built in the fifteenth and sixteenth centuries.

This option effectively integrates the information about the Great Wall of China into a single, grammatically correct sentence. It clearly conveys that the Great Wall is a network of walls and towers and specifies the time period during which much of it was constructed.

A) Much of the Great Wall of China, which is actually a network of walls and towers, was built in the fifteenth and sixteenth centuries.

This choice is correct because it maintains proper grammatical structure by using a relative clause ("which is actually a network of walls and towers") to provide additional information about the Great Wall. It effectively combines the ideas without creating run-on sentences or fragments.

B) The Great Wall of China, this is actually a network of walls and towers, much of it is built in the fifteenth and sixteenth centuries.

This option is incorrect due to its grammatical issues. The phrase "this is actually a network of walls and towers" disrupts the flow of the sentence and creates a comma splice. The sentence lacks a proper conjunction or structure to connect the ideas smoothly.

C) Much of the Great Wall of China, building in the fifteenth and sixteenth centuries, and it is actually a network of walls and towers.

This option is also incorrect as it fails to form a coherent sentence. The phrase "building in the fifteenth and sixteenth centuries" is incorrectly used and makes the sentence confusing. Additionally, the conjunction "and" introduces another independent clause improperly.

D) Actually a network of walls and towers, they built much of the Great Wall of China in the fifteenth and sixteenth centuries.

This choice is incorrect because it begins with a misplaced introductory phrase that does not logically connect to the subject of the sentence. The pronoun "they" lacks a clear antecedent, creating ambiguity and hindering the clarity of the statement.

Conclusion

Option A is the only choice that presents a clear, grammatically correct, and coherent sentence, effectively conveying the essential information about the Great Wall of China. The other options fail to maintain proper sentence structure or clarity, making them ineffective for the task. Thus, A stands out as the best choice for combining the statements into a single sentence.