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Use one the following coordinating conjunctions to fill each blank: although ,because,since,unless,until,when.

Click to check out your answers.

1. His grandpa said the climate was different _____ he was young.

1. His grandpa said the climate was different when he was young.

2. He has been feeling sick _____ he came back from holiday.

2. He has been feeling sick since he came back from holiday.

3. Let us wait in the bookshop _____ the rain stops.

3. Let us wait in the bookshop until the rain stops.

4. You cannot be a lawyer _____ you have a law degree.

4. You cannot be a lawyer unless you have a law degree.

5. She has not called _____ she left last week.

5. She has not called since she left last week.

6. He was angry _____ he heard when happened.

6. He was angry when he heard when happened.

7. He had to retire _____ of ill health.

7. He had to retire because of ill health.

8. We will go swimming next Sunday _____ it's raining.

8. We will go swimming next Sunday unless it's raining.

9. I don't understand how she can say she's happy _____ she looks so sad.

9. I don't understand how she can say she's happy when she looks so sad.

10. _____ the car is old it still runs well.

10. Although the car is old it still runs well.

11. She will die _____ the doctors operate immediately.

11. She will die unless the doctors operate immediately.

12. He did not attend the meeting _____ he was sick.

12. He did not attend the meeting because he was sick.

13. I always trust Ray _____ he is my son.

13. I always trust Ray because/since he is my son.

14. The little boy can lift the box _____ it is quite heavy.

14. The little boy can lift the box although it is quite heavy.

15. It had not rained for weeks _____ the villagers had been praying every day for the rain.

15. It had not rained for weeks although the villagers had been praying every day for the rain.

16. The baby cried _____ its mother woke up.

16. The baby cried until its mother woke up.

17. The boy could not reach the book _____ it was on the top shelf.

17. The boy could not reach the book because/since it was on the top shelf.

18. The police had not arrived _____ the accident caused a long traffic jam.

18. The police had not arrived until the accident caused a long traffic jam.

19. She won the contest _____ she was the best candidate.

19. She won the contest because/since she was the best candidate.

20. They blamed the referee _____ they lost the match.

20. They blamed the referee when they lost the match.