[問題]GWD17- Q20

[DARY]

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

Ans: C

想請問為什麼不能用begun修飾?像是E.
還是begin沒有人在用被動式呢?

謝謝

[juyu]

我的感覺是,這裡是要平衡..開始於..完成於=..began..and was completed..而這裡的began應是vi,所以沒有被動,我去查了一下字典,可以參考看看:
EX:The campaign began last year(這場運動始於去年)

[Ace]

E的主要問題還是在which的指代有問題吧
而且and前後不平衡 前句fragment