摘要： 在这一课里, 我们要学习助动词 could, c-o-u-l-d, could 和两个助动词短语would like to, w-o-u-l-d l-i-k-e t-o, would like to 跟 ought to, o-u-g-h-t t-o, ought to. 我们也要学习用连接词 because, b-e-c-a-u-s-e, because 作句子. 阅读全文