Question

英语语法的问题？

mangered 是过去分词做状语

Answer 1

with the bike moving, filled with confidence I gradually accelerated the speed and managerd to reach the end of the park.
这里的managered是谓语动词和accelerated并列。
with the bike moving，with 短语作伴随状语。
filled with confidence，过去分词短语作状语，（I was filled with confidence)
主语是I
accelerated the speed，加快速度，谓语和宾语
managed to reach the end of the park，设法到达了公园的尽头。谓语和宾语（不定式短语）
and连接并列谓语。
manage to do意思 设法做成了某事。