After the war, a new school building was put up ________ there had once been a theatre.

There is a new problem involved in the popularity of private cars ________ road conditions need ________.

I can think of many cases ________ students obviously knew a lot of English words and expressions but couldn't write a good essay.

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It is pretty well understood ________ controls the flow of carbon dioxide in and out of the atmosphere today.

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Generally speaking, ________ according to the directions, the drug has no side effect.

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-- Go for a picnic this weekend, OK?

-- ________. I love getting close to nature.

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Have you seen the film Titanic, ________ leading actor is world famous?

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It is these poisonous products ________ can cause the symptoms of the flu, such as headache and aching muscles.

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It was some time ________ we realized the truth.

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He was educated at a local grammar school, ________ he went on to Cambridge.

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