帮我分析一下这个句子成分~如果语法高手愿意，请留下QQ

帮我分析一下这个句子成分~如果语法高手愿意，请留下QQ
She used to take the bus, but she was now too frightened to get around the city
（究竟used to是谓语还是要加take作）
by herself
方式状语
now是时间状语， too frightened to get around the city作什么成分？

答：单看句子，感觉was为is之误。
搜索知原句改自美文《The Powerful Gift of Love》中的这一段：
Finally, Susan felt ready to return to her job, but how would she get there? She used to take the bus, but was now too frightened to get around the city by herself. Mark volunteered to drive her to work each day, even though they worked at opposite ends of the city. （注，Susan后来双目失明）
后成为【2010年高考】英语湖北卷真题之完型填空题。
She used to take the bus,but she was now too 36 to get around the city by herself .
原题句为简单句（but并列谓语，只有一个主谓结构）。
改编句结构分析如下：
一、粗分：这是一个由并列连词but 并列两个简单句而成的并列句。
二、并列分句1. She used to take the bus. 分析：
主语：She
谓语：used to take
宾语：the bus
(注：谓语used to take不必细分，可将used to和had to一样看成情态动词，这是一个复合谓语）
三、并列分句2. she was now too frightened to get around the city by herself . 分析：
主语：She
谓语：was
表语：too frightened to get around the city by herself
状语：now
四：表语 too frightened to get around the city by herself 再细分析：
中心词：frightened ,过去分词，作形容词用。“恐惧的”。
副词too作状语，修饰frightened
不定式短语：to get around the city by herself 作状语，表示结果。
五、不定式短语to get around the city by herself 再分析：
to get around the city , 不定式，非谓语动词词组to get around +自已的宾语the city +自己的状语 by herself。
全句翻译：
她过去常常坐公交车的，可是现在她（双目失明）是如此的害怕，以至于不敢一个人在市区走动。
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