7.宾语从句可作某些作表语用的形容词的宾语

I am not sure what I ought to do．

我不能确定我该做什么。

I'm afraid you don't understand what I said．

恐怕你没领会我说的意思。

I'm surprised that I didn't see all that before．

我好奇怪，所有的东西我以前都没看到过。

Mother was very pleased her daughter had passed the exams．

妈妈为她的女儿通过了考试而感到高兴。