请教2004。8 的两道 语法题

2004.8    No.18

18. One of the most famous structures in the world, the Statue of Liberty is widely considered a inspiring symbol of hope and freedom.

答案中说 a应该改为an。这一点我肯定，但是，是不是应在considered后面加as 呀？

2004.8    No。37

37.The light produced by lasers is in general far more monochromatic, powerfully, and coherent than that from any other light source.

powerfully 肯定错。但是，末尾的source 是不是应该加s，因为前面有any other ？

18/consider后面可以不跟介词

37/powerfully没有错啊！monochromatic,?,and coherent三者之间是并列关系，其词性也应该一样！都是形容词。powerfully是副词！如果light source也算有问题的话，应该没有前面的问题严重。托夫考试中经常有错大和错小的题目。