书名：公式TOEIC Listening & Reading 问题集 <1>
页数：Test1 No.120
题目：
___________ a small festival celebrating the town's heritage, the Clarytown
Celebration has become one of the biggest annual events in the area.
(A) Origin
(B) Originate
(C) Originated
(D) Originally
疑问：
答案是(D)，大概知道是用Originally修饰celebrating
还请问版上大大
Originally a small festival celebrating the town's heritage的文法该怎么解释呢？
因为逗点后面已是完整句子，看不透前面这句该怎么分析><"?
感恩 祝大家都考到自己理想的分数 m(_ _)m