Question

____was known to them that Bob had broken his promise____he would give them a rise.

答案A.As;which B.As;that C.It;that D. It;which 选B为什么后面不是定语从句呀不明白

Answer 1

参考答案：应该选C。

解释：
It was/is known to sb that句型，表示“某人知道。。。。”；
在这句话中意思是：“他们知道。。。某件事”，是哪件事呢？that后面的Bob had broken his promise是最主要的一部分，“鲍勃没有遵守诺言”这件事，什么样的诺言呢？that引导同位语从句：he would give them a rise ”鲍勃会给他们一个提升”这样一个诺言。
这里是同位语从句，而不是定语从句。所以不选D.

你看明白了吗？
请采纳，谢谢支持！

Answer 2

后面的是同位语从句，从句部分是对先行词的解释说明，用来说明那个 “承诺”的内容
不是定语从句，定语从句是对先行词的修饰限制

Answer 3

It was known to them that Bob had broken his promise that he would give them a rise.
that引导的是同位语从句，是promise的内容