1.He sold the car,yet he can't help regretting it.(yet 表转折,相当於but)
2.Either she is to blame or you are.(either...or表两者之中的任一个)
3.Neither can he answer the question nor do you know the answer.(neither...nor表两者都不)
4.It was late,so she went to bed.(so表结果)
5.He didn't buy the house,for he was short of money.(for表原因)