Grammar Exercise - If or Unless

Do the exercise below on the difference between if and unless and click on the button to check your answers.

(Before doing the exercises you may want to read the lesson on conditional sentences)

Choose the correct answer (if or unless)

  1. you help me, I'll be unable to do it .
  2. I meet him, I'll tell him the whole truth.
  3. You won't get well you stop smoking.
  4. you exercise regularly, you won't be able to lose some weight.
  5. you exercise regularly, you'll lose some weight.
  6. The teacher will be furious you don't the homework.
  7. You can't go on vacation you don't save some money.
  8. You will feel cold you wear a warm jacket.
  9. We'll arrive on time we hurry.
  10. Don't call me it's an emergency.

Related materials: