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I didn't meet him right away ____ he had to talk to his boss first.

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____ what has happened, I think she will never return.

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For environmental safety, we need to find ways to reduce emission of fumes and smoke of factories.

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____ he was waiting for Sam outside the cinema, Jim realized that the street was funnily crowded.

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Many animals were born in captivity. Resultantly, they do not always breed well.

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There wasn't a chair for the headmaster, ____ is a big problem.

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The advances of commercial airplanes resulted in a shrinking world.

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The student wiped the board ____ was full of notes and drawings.

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True Blood is my favourite TV series, ____ I don't have much time to watch it often.

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The kids show some hatred towards him, ____ he was really nice to them.

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We can leave ____ you are ready.

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I like swimming ____ my sister likes jogging and dancing.

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We have to suffer from traffic congestion and pollution every day.

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After the children finished their dinner, they went to bed ____ listened to a bedtime story before falling asleep.

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Nylon is a man-made fibre, the use of which has helped more people to have cheaper and more colourful clothes to wear.