2019-08-19 20:32 回答问题

before the plaster dry 作 finish 的状语，修饰finish这个动作的完成时间。“Finishing a painting before the plaster dry”整个做句子的主语。dry 是before 引导的时间状语的谓语。

2019-08-17 19:06 回答问题

1. He says that. that为he does think that the study should encourage parents to look more closely at the types of games their kids are playing.从句里嵌套一个从句2. Researchers say that. that 为brain of kids who played a violent video game showed an increase in emotional arousal. at the Indiana University School of Medicine修饰 researcher.

2019-08-17 18:47 回答问题

that没有引导从句，这里的that 指代前面的 the room，后接of designe (私以为这里应该是designed 精心设计的) showcase 表示 the room 目前的属性。考虑删除 that once belonged only to the servants 和 for the modem family，剩余The elevation of the room  to that of design showcase tells the story of a century of social change. 是不是就好理解了呢？？