题目

 The professor has received the letter ____ to give a lecture in frication Institute. A. being invited   B. to be invited  C. inviting him   D. invited 答案:C 解析:   该题考查分词短语的用法。the letter与invite之间存在主谓关系,故要用现在分词作后置定语。
英语 试题推荐