Choose the correct options to complete the sentences

1. We won't be on time
   [if|unless]
   you hurry up.
2. We'll have a good crop
   [if|unless] it rains enough this spring.
3. Mashed potato gets smooth and creamy
   [if|unless] you add milk and butter.
4. Jimmy can work very effectively
   [if|unless] you disturb him with lots of questions.
5. I will open the window
   [if|unless] you don't mind.
6. I can't help her
   [if|unless] she lets me.
7. You can't make her like you
   [if|unless] she doesn't.
8. Everybody will get more relaxed
   [if|unless] we take a break and have some tea and snacks.