Fill in the blanks with if or unless.
1. Come tomorrow ......................... you can.
Unless means 'if not' or 'except if'.
2. I will take this job ....................... the salary is not too low.
3. I will be back in the evening ......................... there is a bus strike.
4. Let's go for a walk - .............................. you are too tired.
Unless means 'if not'.
5. I am going to work in the garden this afternoon ................. it rains.
6. ........................... you don't mend your ways, you will land in trouble.
8. ............................ you don't stop the music, I will call the police.
If not means the same as unless.
9. The taxmen will get you ........................ you don't pay the tax.
If not means the same as unless.
10. ............................... you try, you will never win.
The above sentence can also be written as: If you don't try, you will never win.
11. ................................ you don't pay up, you will be in trouble.
The above sentence can also be written as: Unless you pay up, you will be in trouble.
12. ............................... she is late again, she will be shown the door.
Unless is not possible here because it means if not.
Answers
1. Come tomorrow if you can.
2. I will take this job if the salary is not too low.
3. I will be back in the evening unless there is a bus strike.
4. Let’s go for a walk – unless you are too tired.
5. I am going to work in the garden this afternoon unless it rains.
6. If you don’t mend your ways, you will land in trouble.
7. I won’t be able to go unless you come with me.
8. Unless you don’t stop the music, I will call the police.
9. The taxmen will get you if you don’t pay the tax.
10. Unless you try, you will never win.
11. If you don’t pay up, you will be in trouble.
12. If she is late again, she will be shown the door.
