He is far more pleased at the news 怎么解释AT的在此处的用法

He is far more pleased at the news 怎么解释AT的在此处的用法 He is s__ at the news pleased about/ pleased at / pleased with /pleased to的区别 一句话解释(at the corner 的用法） be pleased at 和 be pleased with的区别 He felt astonished at the ()news. he was a ( ) at the amazing news. He was happy at the news. He looked-------(happy)at the bad news. 在（）里填上适当的词We are surpised at the bad news that there （is）a t the的用法.为什么at church ,at school ,at home .而 at the offic,at t insofar 看字典解释为in so far as at far还是不明白,怎么个用法呢?