____was known to them that Bob had broken his promise____he would give them a rise.A：it ,which.B：it, that.为什么选A?麻烦解答的详细点.谢谢.
问题描述：
____was known to them that Bob had broken his promise____he would give them a rise.
A：it ,which.
B：it, that.
为什么选A?
麻烦解答的详细点.谢谢.
答
这是个定语从句，it是形式主语，真正的主语是that后面的部分，which是代指 his promise， 因为 his promise是物，所以用which
答
答案错的 he would give them a rise是完整的句子 which是引导定语从句的 所接的句子应该是不完整的 此处应用that 引导主语从句 后面的that代指he would give them a rise
答
这道题不选A,应该选B.
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A