GRAMMAR: How to talk about cause and effect

source: BBC Learning English     2015年9月8日
Neil prefers paper books to e-books, but sales of paper books are declining. Find out why and learn some useful phrases for talking about cause and effect in this episode of 6 Minute Grammar. For extra activities and study materials on present tenses visit:
http://www.bbc.co.uk/learningenglish/...

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