Not only grammar

this section is about grammar and vocabulary. You will find useful links here

http://www.theenglishalley.com/

http://www.roadtogrammar.com/

http://oomongzu.com/

https://learnenglishteens.britishcouncil.org/

http://www.bbc.co.uk/learningenglish/english/.   

BBC Learning English for Intermediate Students

https://agendaweb.org/

https://www.languageguide.org/english-uk/vocabulary/

Levels: Beginner, Intermediate

https://quizlet.com/it

https://www.liveworksheets.com/

https://en.islcollective.com/english-esl-worksheets?order=newest

https://www.ego4u.com/

https://www.grammarbank.com/

https://www.usingenglish.com/

https://learnenglish.britishcouncil.org/

https://www.usingenglish.com/quizzes/

https://www.myenglishpages.com/

https://www.perfect-english-grammar.com/

Free online dictionaries

https://www.macmillandictionary.com/

https://www.dicts.info/

https://www.oxfordlearnersdictionaries.com/

https://www.wordreference.com/it/

PHRASAL VERBS

https://en.islcollective.com/

https://www.englishtestsonline.com/phrasal-verbs-test-2/

http://www.onestopenglish.com/skills/vocabulary/phrasal-verbs/

https://www.perfect-english-grammar.com/support-files/phrasal-verbs-exercise-1.pdf

Writing skills

https://learnenglishteens.britishcouncil.org/skills/writing

https://learnenglish.britishcouncil.org/writing-purpose/your-writing-task-your-purpose

https://www.teachingenglish.org.uk/article/writing-activities

Listening and comprehension

https://learnenglishteens.britishcouncil.org/skills/listening

https://www.esolcourses.com/

https://en.islcollective.com/ (video lessons)

https://learnenglishkids.britishcouncil.org/grammar-chants/internet-safety

http://esl-bits.net/

https://lyricstraining.com/

https://www.apps4efl.com/activities/lyric_learner/

https://www.youtube.com/channel/UCKgpamMlm872zkGDcBJHYDg/videos?app=desktop

Reading and Comprehension 

https://www.usingenglish.com/comprehension/

https://learnenglishteens.britishcouncil.org/skills/reading

https://www.esl-lounge.com/student/

http://esl-bits.net/

https://www.youtube.com/channel/UCtt7mbepezK81IVbb4C1_pw

https://www.youtube.com/playlist?list=PLnm5SG8f9gtgTtezbWwGu5SIsHcQN7CDW

https://agendaweb.org/reading-exercises

https://breakingnewsenglish.com/

https://www.wonderopolis.org/

https://learnenglishkids.britishcouncil.org/poems

https://www.poemhunter.com/

https://www.poetryoutloud.org/competing/listen-to-poems/ (advanced level)

Speaking

https://learnenglishteens.britishcouncil.org/skills/speaking