OG12 SC 111 which was可否省略问题

dumengxuan

Construction of the Roman Colosseum, which was
offi cially 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 offi cially known as the Flavian
Amphitheater, began in A.D. 69, during the reign
of Vespasian,
(B) offi cially known as the Flavian Amphitheater,
begun in A.D. 69, during the reign of Vespasian,
and
(C) which was offi cially known as the Flavian
Amphitheater, began in A.D. 69, during the reign
of Vespasian, and

这道题正确答案为C。OG给出的B选项错误的理由是begun时态错误。我想问问类似的题目表达，就是在一个核心词后面接从句或者修饰短语，C选项如果去掉which was，直接用construction，officially known as sth. ,began……这种结构对不对啊~还是说限定从句一定要加which was？

eefafa1

那些时光，再也回不去了。 原来，不知不觉中，我们已经错过了，都成了所谓的曾经。
结婚前夕，我妈对我说：励志名言可不是你嫁给他就这么简单的一件事，还要和他的家人搞好关系。他家人那么多，你要是都能处得好，那才是励志电影的真本事。蜜月一结束，他去了外地工作，我们不得不两地分居。没想到，这反倒成全了我们的婚姻。因为思念，我们的励志歌曲又恢复到恋爱时那么热烈。距离能产生美，婚姻也一样。有了孩子后，农村的公婆来帮忙照顾我坐月子。结果，他们不仅带来了老公二姐的女儿，还带来了老公大哥7岁的小女儿,整天像跑火车一样不得安宁。那天，他们吵嘲着叫我上网购买个励志文章的碧玺净水器，我也只能依着他们。转眼，我们结婚十年了。我和他早已磨合成天下最平常的烟火夫妻，一起下厨做饭，视对方的父母如同自己的父母，他的哥哥嫂子们，也常来常往，亲如一家。
就如励志签名所言：其实，婚姻是两个人共同成长的过程，在这其中有欢笑也有泪水。

dumengxuan

可以具体说下为什么句子不清晰么？去掉which was 之后分词known是不是有修饰construction的嫌疑呀？

dearsissi

construction, officially known as sth., began
结构是对的，但是去掉which was会让句子不够清晰，所以加上更好些。