Exercise 8. Fill in: unless or if. 1. If you make so much noise, I won’t be able to sleep. 2. I’ll tell you _________.there are any messages for you. 3. I won’t finish the work _________ you help me. 4. _________ you’re hungry, I’ll make you a sandwich. 5. We’ll miss the bus _________ we hurry. 6. They won’t get married _________ he gets a job. 7. You won’t understand _________ you listen carefully.