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In this week's Question and Answer of the Week, Neil and Feifei talk about costume drama.

If you're a fan of TV programmes like Downton Abbey, you might struggle to understand some of the English because it's old-fashioned.

And in the past, there were very precise ways of speaking to people above and below you in social rank.

Find out how the servants should speak to the lords in this programme.

If you have a question you'd like us to answer, you can write to us or email: questions.chinaelt@bbc.co.uk.