下面句子中的错误存在于状语从句或者定语从句(3)

高考英语语法

belief , doubt , fact , hope , idea , news , possibility , thought , order , suggestion , wish , answer ,

information , conclusion , decision , discovery , knowledge , law , opinion , problem , promise , proof , question , report , truth , risk 等。

I still remember the days that we spent happily together. 我仍然记得我们一起愉快度过的那些日子。（定语从句）

This is the place that / which we will visit tomorrow . 这就是明天我们要参观的地方。（定语从句）

The text tells us a fact that smoking does great harm to people's health . 这篇课文又告诉我们一个事实，吸烟对健康危害很大。(同位语从句)

I had no idea that he had already gone abroad . 我不知道他已经出国了。(同位语从句)