Complete the following sentences using if or unless.

1. ………………………………….. you don’t help me, I will be in real trouble. (if / unless)

2. ……………………………….. you invite her, she will not come. (if / unless)

3. ………………………………… there is an emergency, don’t disturb me. (if / unless)

4. ……………………………….. you don’t start now, you won’t reach there in time. (if / unless)

5. …………………………….. you don’t work hard, you will not win. (if / unless)

6. ……………………………….. I had known, I would have told you. (if / unless)

7. I will phone you ………………………………. I have time. (if / unless)

8. It would be nice …………………………………… you helped me a bit with the housework. (if / unless)

9. …………………………………….. you stop eating fatty foods, you will not lose weight. (if / unless)

10. ………………………………….. she pays up, we are going to be in real trouble. (if / unless)

Answers

1. If you don’t help me, I will be in real trouble.

2. Unless you invite her, she will not come.

3. Unless there is an emergency, don’t disturb me.

4. If you don’t start now, you won’t reach there in time.

5. If you don’t work hard, you will not win.

6. If I had known, I would have told you.

7. I will phone you, if I have time.

8. It would be nice if you helped me a bit with the housework.

9. Unless you stop eating fatty foods, you will not lose weight.

10. Unless she pays up, we are going to be in real trouble.