1. b
1. If you don’t finish your homework in time, our teacher won’t be happy.
2. c
2. He’ll do an hour’s revision in the morning if he wakes up early enough.
3. e
3. If she needs money over the summer, she’ll get a part - time job.
4. a
4. If he decides to become an engineer, he’ll apply for a place at university.
5. d
5. If I pass all of my exams, my parents will give me a reward.