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http://www.grammarinenglish.com/idiomsphrases/

Connectives - Parts of speech - Knowledge of Language. (n.d.). Retrieved from

http://www.educationscotland.gov.uk/knowledgeoflanguage/english/partsofspeech/connectives/

conversational gambit - Everything2.com. (n.d.). Retrieved from

http://everything2.com/title/conversational+gambit

Lexical chunk | TeachingEnglish | British Council | BBC. (n.d.). Retrieved from

https://www.teachingenglish.org.uk/article/lexical-chunk

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BBC World Service | Learning English | Learn it. (n.d.). Retrieved from

http://www.bbc.co.uk/worldservice/learningenglish/grammar/learnit/learnitv351.shtml