Answer:
1. I went to France last month and met a wonderful boy there. If I hadn't gone to France, I wouldn't have met Pierre.
2 My boyfriend keeps ringing me late at night and I don't really like it.
3 They apologised for arriving late and promised not to do it again.
4 I work in a factory, but I don't like it. I wish I worked somewhere else.
5 Kate was late for her plane, and she didn't go on holiday. If she had not been late for her plane, she would have gone on holiday.
6 They left without saying goodbye because they couldn't miss the last train.
7 Where can you get clothes made? I need to get a new suit for my wedding.
8 If you dream about becoming famous, then you should try and make your dream come true instead of only thinking about it!
9 I didn't study and I failed the exam. If only I had studied more!
10 I went to see a horror film and I can't sleep at night now. I wish I hadn't gone!
11 They managed not to be late yesterday although the traffic was terrible.
Step-by-step explanation: