Exercise 1
Write a new sentence with the same meaning. Use unless in your sentence.
1 You must try a bit harder or you won’t pass the exam.
You won’t pass the exam …………………….
2 Listen carefully or you won’t know what to do.
You won’t know what to do …………………….
3 She must apologise to me or I’ll never speak to her again.
…………………….
4 You have to speak very slowly or he won ‘t be able to understand you.
…………………….
5 Business must improve soon or the company will have to close.
…………………….
Answers
1
1 You won’t pass the exam unless you try a bit harder.
2 You won’t know what to do unless you listen carefully.
3 I’ll never speak to her again unless she apologises to me. or Unless she apologises to me, I’ll …
4 He won’t be able to understand you unless you speak very slowly. or Unless you speak very slowly, he …
5 The company will have to close unless business improves soon. or Unless business improves soon, the company …
Exercise 2
Write sentences with unless.
1 The club isn’t open to everyone. You ‘re allowed in only if you’re a member.
You …………………….
2 I don’t want to go to the party alone. I’m going only if you go too.
I’m not going …………………….
3 Don’t worry about the dog. It will attack you only if you move suddenly.
The dog …………………….
4 Ben isn’t very talkative. He’ll speak to you only if you ask him something.
Ben …………………….
5 Today is a public holiday. The doctor will see you only if it’s an emergency.
The doctor …………………….
Answers
2
1 You aren’t allowed in the club unless you’re a member.
2 I’m not going (to the party) unless you go too. / … unless you’re going too.
3 The dog won’t attack you unless you move suddenly.
4 Ben won’t speak to you unless you ask him something.
5 The doctor won’t see you unless it’s an emergency.
Exercise 3
Which is correct?
1 You can borrow my car unless / as long as you promise not to drive too fast.
2 I’m playing tennis tomorrow unless / providing it rains.
3 I’m playing tennis tomorrow unless / providing it doesn’t rain.
4 I don’t mind if you come home late unless / as long as you come in quietly.
5 I’m going now unless / provided you want me to stay.
6 I don’t watch TV unless / as long as I’ve got nothing else to do.
7 Children are allowed to use the swimming pool unless / provided they are with an adult.
8 Unless / Provided they are with an adult, children are not allowed to use the swimming pool.
9 We can sit here in the corner unless / as long as you’d rather sit over there by the window.
10 A: Our holiday cost a lot of money.
B: Did it? Well, that doesn’t matter unless / as long as you enjoyed yourselves.
Answers
3
1 as long as
2 unless
3 providing
4 as long as
5 unless
6 unless
7 provided
8 Unless
9 unless
10 as long as
Exercise 4
Use your own ideas to complete these sentences.
1 We’ll be late unless …………………….
2 I like hot weather as long as …………………….
3 It takes about 20 minutes to drive to the airport provided …………………….
4 I don’t mind walking home as long as …………………….
5 I like to walk to work in the morning unless …………………….
6 We can meet tomorrow unless …………………….
7 I can lend you the money providing …………………….
8 You won’t achieve anything unless …………………….
Answers
4
1 we get a taxi
2 it’s not too hot
3 there isn’t too much traffic
4 it isn’t raining
5 I’m in a hurry
6 you have something else to do
7 you pay it back next week
8 you take risks
