第一个选A,所用句型是be supposed to do sth,不定式用完成式,表示上周已发生的动作.
第二个选C,known for her splendid speeches 是一个过去分词短语做后置定语,修饰speaker,相当于一个省略了主语和be的定语从句(who was ) known for her splendid speeches .
第一个选A,所用句型是be supposed to do sth,不定式用完成式,表示上周已发生的动作.
第二个选C,known for her splendid speeches 是一个过去分词短语做后置定语,修饰speaker,相当于一个省略了主语和be的定语从句(who was ) known for her splendid speeches .