Make conditional sentences for the following situations: I don't know you are coming, I don't invite some friends in

Make conditional sentences for the following situations:
1.I don't know you are coming, I don't invite some friends in
2.We don't visit our parents very often because they live so far away
3. I can't look the word up because I haven't got a dictionary
4.He didn't prepare for the interview, so he didn't get the job
5.We came home from our holiday early because we ran out of money