Fill in all the gaps with the correct verb form, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints!
1. You (not pass) the exam unless you (study).
2. I (not go) to the party unless you (go) too.
3. Unless you (stop) talking, I (not continue).
4. Unless it (be) cheap, they (not buy) the flat.
5. We (not go) to the beach unless the weather (be) nice.
6. I (not take) an umbrella unless it (rain).
7. John (be) late unless he (call) a taxi.
8. Unless you (hurry), you (miss) your train.
9. I (not phone) you unless it (be) important.
10. Mr. Smith, unless you (take) your medication, you (not get) better.