用and、but、或so合并句子）
问题描述：
用and、but、或so合并句子）
2、Tomorrow is OK.I won't be free until lunchtime.
3、Sally felt ill.She did not go to the concert last night.
4、Smoking is a bad habit.It is bad for your health.
5、My leg still hurt.I went to see a doctor.
答
2.but
3.so
4.and
5.soMy leg still hurt so I went to see a doctor为什么用so？ 我的腿还在疼，所以我已经去了医院？可以用and吗？我去看了医生，因为我的腿还疼，so有引出原因的作用，翻译成所以。and是并列的关系，不引出原因