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The government has introduced a new ________ campaign in an attempt to reduce the number of road accidents.

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I used to go to school _________.

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Because my school is close to my house, I go to school on ______.

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Don’t be surprised if you get stuck in a traffic _______ in the morning when you stay in Ho Chi Minh City.

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The city’s brand new railway ______ is located directly in front of the bus station to make travel very easy.

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Why didn’t you ______ the bus I told you? – Because I changed my route.

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I love travelling by ________ because I can see the whole city from above the sky.

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At the Southest region there are many rivers and canals. So children have to go to school by ____.