第7题: [单项选择]The pilot asked all the passengers on board to remain ______ as the plane was making a landing. A. seat B. seating C. seated D. to be seating 参考答案:C 答案解析:本题测试系表结构。过去分词常表示被动,但在 be seated,be hidden,be stationed,be dressed,be caught in,be lost,be born,be ti
第23题: [单项选择]______ , he swore that he was not asleep. A. Although I had difficulty in waking him B. Since I had difficulty in waking him C. Being difficulty in waking him D. Even if I had difficulty in waking him 参考答案:A 答案解析:[解析] 本题考查连词的用法。四个选项中的difficulty in waking him与题干中he was not asleep都存在着意思上的转折关系,故所填的连词应当表示转折关系,[A]中的A