题目内容
Many people say they have seen Unidentified Flying Objects, which they believe ________ alien spaceships.
- A.are
- B.is
- C.have
- D.as
A
由objects和spaceships可知,此处表复数意义。“他们相信飞碟是外星人的飞船。”
由objects和spaceships可知,此处表复数意义。“他们相信飞碟是外星人的飞船。”
练习册系列答案
相关题目