Ответ:
1) If she calls tell her the news.
2)Unless Dave studies harder, he won't his driving test.
3) If I finish early today, I may go to the cinema.
4) Unless you stop eating fast food, you won't lose any weight.
5) If you have a headache, you can take an aspirin.
6)Unless you get a lift from Darren, you will miss the concert.
7)Unless Chelsea plays better, Manchester United will the Premier.
8) If I see Tim, I'll give him your phone number.