我想知道FA究竟形容谁，是construction还是RC? 感觉好像都可，这题光看which排除不了

——句意——
1）平行错误
A：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.❌
C：Construction of the Roman Colosseum, which was officially known as the Flavian Amphitheater, 【began in A.D. 69】, during the reign of Vespasian, and 【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. 【始建】【竣工】两者平行✔
2）缺少谓语
B、D：Construction of the Roman Colosseum, 【officially known as the Flavian Amphitheater, begun in A.D. 69, during the reign of Vespasian】, and❌

跳修饰找谓语，发现两个并列的谓语动词began,and was 而BCE中begun是过去分词，并非谓语，所以排除

begun。。。began。。。注意分别！

D中的and bugun是不是也不对？

begun过去分词不能做谓语啊，要看清楚别和began混淆了。BE都因此而错。

首先根据句子的平行关系，排除A和D； BCE里面， 如果用E，整个句子缺少谓语，所以排除E，剩下BC；BC中第一个句子都是正确的，差别在第二句一个是Begun，一个Began，如果是B，那么known as，Begun同时都是分词表被动，和 was completed 应该是平行结构，但是现在B这样was completed多一个系动词就不平行了，所以B错，最后只能是C，老师这样分析对吗？

known as 是指colosseum，began是construction，所以began和was completed 并列，中间需要连词

BE不加and是不是就对了

B和C两个选项里我选的是C觉得C的指代更清楚，结构很清晰，但是为什么对B选项不对不是明白！begun 和后面的was completed难道不平行吗？还是这里的begun只是一个done的结构作为修饰

呃，建造是不能自己开始的啊，它不是被人开始的吗？所以如果用and，那就应该是was began 和后面was completed一致不是？

错了。

哦，好像明白了。began in A.D. 69, during the reign of Vespasian,and was completed a decade later, during the reign of Titus

这样就平行了~~不知道理解是否对。谢谢

我选的是A，如果是加连词，我认为是和前面的which was平行。which was,,,,,and was。可是解释是连接两个谓语动词，began和complete可是began in A.D. 69和and was completed 不平行啊。希望老师解惑。谢谢

求教：这个题，which was不应该不要吗？Known as 应该是一直存在的状态，不是只有过去was known。 是否说明还是语法是首要排除对象