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  9. ________, which is partly caused by exhaust fumes from cars, is a very big problem in many big cities across the world.

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________, which is partly caused by exhaust fumes from cars, is a very big problem in many big cities across the world.

أسئلة عشوائية

It's very cold = It's ......

Identify the mistake "Afraid to looking his father in the eye, Howard kept his head bowed."

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