OG 111求指点！

pye34878

111. Construction of the Roman Colosseum, which was officially known as the Flavian Amphitheater, began in A.D. 69, during the reign of Vespasian, was completed a decade later, during the reign of Titus, who opened the Colosseum with a one-hundred-day cycle of religious pageants, gladiatorial games, and spectacles.

(A) which was officially known as the Flavian Amphitheater, began in A.D. 69, during the reign of Vespasian,

(B) officially known as the Flavian Amphitheater, begun in A.D. 69, during the reign of Vespasian,and

(C) which was officially known as the Flavian Amphitheater, began in A.D. 69, during the reign of Vespasian, and

(D) officially known as the Flavian Amphitheater and begun in A.D. 69, during the reign of Vespasian it

(E) officially known as the Flavian Amphitheater, which was begun in A.D. 69, during the reign of Vespasian, and

OG 的解释：D There is no need to use the pronoun it as the subject of was completed, because Roman Colosseum (modified by phrases describing its name and the time it was begun) already serves as the subject of the final verb

The final verb: was completed的主语不是应该仍然是Construction吗？这里的意思为什么貌似是主语变成了RC？

Gail小M

ignore..the subject is cons..

pye34878

？？

Gail小M

I suppose it was a small mistake in og, the subject is construction <since og has already said that the main subject is cons..>