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We _________ a campaign to raise funds for street children last year.

TikTok, the popular app that (31) _________ users to create and share short videos, seems to be the most downloaded app in the world.

Which could be the best title for the passage?

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Nick said that he ________ that book at the bookstore the week before.

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Every summer thousands of people flock to __________ countryside.

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If you _________ Oxford, you will see some interesting old buildings.

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 Mary hopes  ________ the gold medal, so she practices swimming every day.

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Deforestation has a ________ contribution to atmospheric carbon dioxide increases.