As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500, or legally blind if it were an adult with such vision.
(A)As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500, or legally blind if it were an adult with such vision.
(B)A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500, or legally blind as an adult.
(C)As a baby emerges from the darkness of the womb, its rudimentary sense of vision would be rated about 20/500; qualifying it to be legally blind if an adult.
(D)A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500; an adult with such vision would be deemed legally blind.
(E)As a baby emerges from the darkness of the womb, its rudimentary sense of vision, which would deemed legally blind for an adult, would be rated about 20/500.
NO1：---- “A逗号前面说当。。时，可是逗号后面没有马上说正事，用it开头，不合适” ， 没有立马说正事的这个观念懂，但为什么it开头就不行啊？ 后面 c) and e)的 its 开头就可以？
NO2： --- 人不能用 it 指代嘛？ = = 这个。。。 好像是不能
Construction of the Roman Colosseum, which was officially known as the Flavian Amphitheater, began in A.D. 691 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