Exercise
fill in the blanks with when, while, because ,since, if, unless, before, after, wherever,although, so that, or as if .
1. Since edison invite a lamp which conducted electricity, gas had been the chief means of lighting home and streets.
2. I saw an old friend of mine when I was entering the building.
3. Because his car was much too small, he decided to sell it.
4. He won’t pass the examination unless he study harder.
5. Wherever he went, he was warmly received.
6. That executive actc because he owns the company.
7. Unless I get the money on time, I can go on my vacation.
8. Although she spend a lot of money on clothes, they never seem to suit her.
9. I have a lot of extra work to do while my assistant is on vacation.
10. After they moved into an expensive apartment, they have become very snobbish.
11. While someone broke into her house and stole her jewelry, she was next door chatting with her neighbour.
12. It’s while warm today when I’m going to the beach.
13. Although my uncle has worked hard all his life, he could never save up enough money to go on a long vacation.
14. We will go to the theatre with you tonight if we can get a baby-sitter.
15. Don’t give this package to him before he sign a receipt for it.
16. We’re since pleased with these new towels so that we’re going to buy some more.
17. Since hitler believed that Germans were the master race, he set out to conquer all of Europe.
18. Although I was in south America last year, I learned to speak Spanish.
19. He looks so that he hasn’t ever changed his clothes.
20. Repairs will be made while they are necessary.
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