so的例句：
1、There wasn't much traffic so we made good progress.
来往车辆不多，所以我们开得很快。
2、I've got my own room so I'm well off.
我有自己的`房间，所以还不错。
3、 It wasn't so good as last time.
这次不如上次好。
4、There are so many different makes to choose from.
有很多不同的型号可供选择。
5、Why do you make things so difficult for yourself?
你为什么这样跟自己过不去？