The bike looked as if it was a new one after it had been thoroug

The bike looked as if it was a new one after it had been thoroughly cleaned. ( sentence with a verb-ed phrase)
【正确答案】：Thoroughly cleaned, the bike looked as if it was a new one.
【题目解析】：-ed分词做状语的改写方式，和-ing分词做状语的改写方式相同，也是将一个分句改写为-ed分词短语去修饰另一个分句的。需要注意的是：-ed做状语要求句子的主语是分词动作的承受者，否则就垂悬了。