1 You can’t go to the party unless / as long as you wear fancy dress.
2 I’ll go out for a meal provided that / unless you pay.
3 They can have a party as long as / unless there isn’t too much noise.
4 We’ll play football tomorrow provided that / unless it isn’t raining.
5 We’re going to Seville in July as long as / unless Mandy changes her mind.
6 I’ll lend you the money as long as / unless you promise to pay me back.
7 I’ll be there at eight o’clock unless / as long as the train isn’t late.
8 We won’t be able to get into the flat provided that / unless we find our keys.
9 He’s going to get a job as soon as / while he leaves school.
10 I saw a strange girl as long as / while I was waiting for the bus.

1 unless2 provided that3 as long as4. provided that5. unless6. as long as7. as long as8. unless9 as soon as10 while