In addition to the free rides, Nares' nonprofit provides support services and assistance to its clientele, many of whom do not speak English.

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"We identified problems with access to interpreting services for people who do not speak English as their first language and for those who are deaf, " Ms Drown said.

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Some 20% of the intake are on free school meals, an indicator of poverty often linked with poor academic performance, and 20% do not speak English at home.

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Harvard Business School is among those seeking to tap that market with a new, simultaneously translated program for Chinese CEOs who do not speak English and whose companies are aiming to go international.

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They do not speak any English but look happy to see their daughter talking with tourist supporters.

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He said he thought people who do not learn to speak English should have to pay for translation services but added there is a "duty to help them get justice".

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Customer service was also criticised, with leaflets only printed in English, when many tenants do not speak the language.

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"Just as some people have taken a perverse pride in not understanding mathematics, so we have taken a perverse pride in the fact that we do not speak foreign languages, and we just need to speak louder in English, " he said.

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