Fill in with if or unless. 1 the shoes fit, i will buy them. 2. she won't go to work tomorrow she is feeling better. 3. you finish your homawork quickly, we will watch a dvd. 4. you run fast, you'll miss the train. 5. i see nigel, i'll tell him ti send you an email. 6. don't do the washing-up you want to.
2 unless
3 if
4 unless
5 if
6 unless