A2 Regular verbs in past

https://agendaweb.org/verbs/past_simple-exercises.html

https://www.youtube.com/watch?v=-_WYJClELoc

A2 To be in past

https://agendaweb.org/verbs/to-be-past-exercises.html

C1 How we come across

https://www.bbc.co.uk/sounds/play/p004y29m BBC. In Our Time-Politeness

https://jezebel.com/teenage-girls-turning-to-image-consultants-for-a-boost-5312640 Jezebel. Teenage Girls Turning to Image Consultants for a Boost of Self-esteem

https://www.thebalancecareers.com/communication-skills-list-2063779  The Balance Careers. Communication Skills for Workplace Success

https://www.youtube.com/watch?v=OdIMGBffc_0  Business etiquette tips from Debrett's Chief Executive | Mint Luxury Conference

https://www.bbc.com/news/uk-45498464 BBC Why it is OK to have 'bad manners'

https://www.youtube.com/watch?v=a2MR5XbJtXU TED  The surprising secret to speakig with confidence

https://blogs.psychcentral.com/dbt/2012/04/10-signs-of-a-confident-communicator/ 10 signs of a confident communicator

https://www.npr.org/templates/transcript/transcript.php?storyId=505733704&t=1552066339773 NPR Neighbors and depression

https://www.bbc.co.uk/sounds/play/b082966z BBC radio 4. Would  you consider cosmetic surgery?

https://dictionary.cambridge.org/es/gramatica/gramatica-britanica/common-verbs/get  Get

https://www.ihbristol.com/useful-english-expressions/example/advice-and-suggestions-2  Advice and suggestions

https://hbr.org/2014/04/behave-yourself Harvard Business Review.  Behave yourself!

A2 Infinitive and gerund

https://agendaweb.org/verbs/infinitive_gerund-exercises.html

C1 Writing a formal letter or email

Formal letters may be written to an individual or to an organisation. The purpose may be, for example,

• to apply for part-time or vacation work (application letter)
• to apply for study or scholarship opportunity (application letter)
• to complain about something (complaint letter)
• to make suggestions about something 
• to request information (enquiry letter)

http://www.rubenvalero.com/english/content/fce-formal-letter-or-email Formal letters

https://www.scribendi.com/advice/how_to_write_a_letter_of_complaint.en.html How to write a letter of complaint