几个定语从句的题目 回答一下选那些选项的理由

来源:百度知道 编辑:UC知道 时间:2024/07/02 04:47:27
1.When was it in the library ____you met him?
A where B that 选B
2.Without facts,we cannot form a worthwhile opinion,for we need to have factual knowledge ______our thinking
A which to be based on B upon which to base 选B
3.In the office I never seem to have time until after 5:30pm____many people have gone home
A on which B by which time 选B

为什么选这些答案???谢谢
第二个还有个选项也是主动 which to base on 也是错的

第一题是强调句,不是定语从句
It is/was +被强调部分+句子的其他成分
eg,you met him in the library in the morning.
强调时间 It was in the morning that you met him in the library.
对这个句子特殊提问 When was it taht you met him in the library.
只是把图书馆提前了迷惑了你,误以为是定语从句了。
第二题没有被动关系。
第三题是到五点半为止愈多人都走了,by才表示到。。。为止