With his homework he went home happily A finished B had finished 说明原因,

问题描述:

With his homework he went home happily A finished B had finished 说明原因,

A
做完作业,他高兴地回家了.
with + n. + 过去分词/现在分词独立结构做状语
在这里用过去分词,因为homework和finish是动宾关系,作业被完成.
B的形式从哪个方面讲都是不对的.最起码“作业是被完成”的,应该是had been finished.所以,从形式上来说就不对.