I have seldom seen my mother----pleased with my progress as she is now .

问题描述:

I have seldom seen my mother----pleased with my progress as she is now .
A...so B.very C.too D.rather
请帮我,并说明选择理由,

选A
SO 是 这么 的意思在这里,全句:我从来没有看到妈妈像现在一样为我的进步而高兴