Hints
Unless has a similar meaning to if not. Study the examples given below.
Unless she works hard she will not pass.
If she does not work hard, she will not pass.
Complete the following sentences using if or unless.
1I will take the job ............... the pay is too low.
Wrong!
Use "unless" to mean "except if" in this sentence.
2She will not buy the house ............... you lower the price.
Wrong!
Use "unless" because she will buy the house only if the price is lower.
3They will not come ............... you invite them.
Wrong!
Use "unless" because they will come only if they are invited.
4You will not lose that belly fat ............... you do not exercise.
Wrong!
Use "if" before a negative condition with "do not".
5Let's go for a walk ............... you are too tired.
Wrong!
Use "unless" to give the exception to the suggestion.
6............... you stop smoking, your health will get worse.
Wrong!
Use "Unless" to mean "if you do not" at the start of the sentence.
7I wouldn't be able to do it ............... she didn't help me.
Wrong!
Use "if" before the negative condition "she didn't help me".
8She will be very upset ............... I don't call her on her birthday.
Wrong!
Use "if" before the negative condition "I don't call her".
9............... you give me the keys, I won't be able to open the door.
Wrong!
Use "Unless" because I can open the door only if you give me the keys.
10............... you don't leave this place at once, I will call the police.
Wrong!
Use "If" before the negative condition "you don't leave".
Answers
- I will take the job unless the pay is too low.
- She will not buy the house unless you lower the price.
- They will not come unless you invite them.
- You will not lose that belly fat if you do not exercise.
- Let’s go for a walk unless you are too tired.
- Unless you stop smoking, your health will get worse.
- I wouldn’t be able to do it if she didn’t help me.
- She will be very upset if I don’t call her on her birthday.
- Unless you give me the keys, I won’t be able to open the door.
- If you don’t leave this place at once, I will call the police.
