几个英语句子的疑惑
1.It wasn't such a good dinner as she had promised us.我在很多题目中遇到,有些时候用AS 有些时候用that ,两者要如何区分呢?
2.Reducing each of the following complex sentences
A.As far as i know,she has never been there.
B.I don't know when he will come.
thanks!