1 There was so much noise in the room that the speaker could

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/04/28 03:27:25

1 There was so much noise in the room that the speaker could not make himself -----
填heard?make 不是动词原形么?2 the ground is-- with --leaves 是covered和 fallen?（为什么是被动语态） 3 lessons -----easily were soon forgotten为什么是填learned?（为什么是被动语态） 4 --the office,the forigen visitors were shown round the teaching building(为什么是填Having been shown 现在完成时不是不用于修饰定语的么?

make sb done表示是某人被如何如何,这里是使他被其他人听到.
be covered with sth固定短语表示被某物覆盖 fallen leaves专指落叶,如果说falling leaves指的是正在下落的叶子.
lessons learned easily...这里是定于从句的省略形式 lessons (which/that are ）learned easily,当定于从句中出现先行词+which/that be done的形式可以直接用done做定语.
Having been shown这里做的是非谓语,这里也可以用Shown,是指那些外国游客在参观完了办公室之后,被带去参观教学楼,参观办公室这个动作发生在参观教学楼（真正的谓语）之前,用完成时,而办公室是被展现给外国游客,即show sb sth-----sth be shown to sb,应该为被动.除此之外Having been done做非谓语时也可直接用Done.

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