The ants had been quick to find an answer to my thoroughly unscientific methods!(蚂蚁已很快找到了相应的对策,来对付我那套完全不科学的办法!)——《新概念英语》两个小疑问:1,按照现在语法,主句中的系表结构“had been quick”整体做“谓语”吗(后接宾语不定式)?2,怎么理解它属于什么状语呢?