8. 过去完成时： When I got to the theatre, I found they had already sold out the tickets. When I got to the theatre, I found the tickets had already been sold out. The whole country was very sad at the news of his death; People had considered him to be a great leader. He had been considered to be a great leader. 9. 含有情态动词的被动语态： 含有情态动词的被动语态是由“情态动词+ be+ 及物动词的过去分词”构成。 You must hand in your compositions after class. Your compositions must be handed in after class. He can write a great many letters with the computer. A great many letters can be written with the computer by him.