If you want to review during the summer holidays, here you have a list of websites that you can use for that purpose:
PRESENT SIMPLE
https://agendaweb.org/verbs/present_simple-exercises.html
https://www.perfect-english-grammar.com/present-simple-exercise-7.html
https://www.ego4u.com/en/cram-up/tests/simple-present-1
https://www.englisch-hilfen.de/en/exercises/tenses/simple_present_mix.htm
PRESENT CONTINUOUS
https://agendaweb.org/verbs/present_continuous-exercises.html
https://www.ego4u.com/en/cram-up/tests/present-progressive-1
https://es.liveworksheets.com/worksheets/en/English_as_a_Second_Language_(ESL)/Present_continuous
https://www.englisch-hilfen.de/en/exercises/tenses/present_progressive_mix.htm
PAST SIMPLE
https://agendaweb.org/verbs/past_simple-exercises.html
https://www.perfect-english-grammar.com/past-simple-exercise-8.html
https://www.myenglishpages.com/site_php_files/grammar-exercise-simple-past.php
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_mix.htm
PAST CONTINUOUS
https://www.ego4u.com/en/cram-up/grammar/past-progressive/exercises
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_progressive.htm
http://www.learnenglish-online.com/grammar/tests/pastcontinuous.html
https://agendaweb.org/verbs/past_progressive-exercises.html
THE FUTURE: WILL
https://agendaweb.org/verbs/future-will-exercises.html
https://www.englisch-hilfen.de/en/exercises/tenses/will_future_mix.htm
https://www.ego4u.com/en/cram-up/grammar/future-1-will/exercises
https://learnenglishkids.britishcouncil.org/grammar-practice/will-future-predictions
THE FUTURE: GOING TO
https://agendaweb.org/verbs/future-be-going-to-exercises.html
https://www.englisch-hilfen.de/en/exercises/tenses/going_to_future_statements.htm
https://www.ego4u.com/en/cram-up/grammar/future-1-going-to/exercises
https://www.english-4u.de/en/tenses-exercises/going-to.htm
COMPARATIVES
https://agendaweb.org/grammar/comparative-adjectives-exercises.html
https://learnenglishkids.britishcouncil.org/grammar-practice/comparatives-and-superlatives
https://es.liveworksheets.com/worksheets/en/English_as_a_Second_Language_(ESL)/Comparatives
https://www.perfect-english-grammar.com/comparative-adjectives-exercise-1.html
SUPERLATIVES
https://agendaweb.org/grammar/comparison-superlative-exercises.html
https://elt.oup.com/student/solutions/elementary/grammar/grammar_08_022e?cc=global&selLanguage=en
https://www.tinyteflteacher.co.uk/learn-english/grammar-practice/adjectives/superlative-adjectives-practice
ZERO CONDITIONAL
- https://agendaweb.org/exercises/verbs/conditional/zero-conditional-forms
- https://agendaweb.org/exercises/verbs/conditional/zero-conditional-write
- https://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-112834.php
- https://www.grammarbank.com/zero-conditional-exercise.html
- https://www.englishexercises.org/makeagame/viewgame.asp?id=9927
FIRST CONDITIONAL
- https://www.examenglish.com/grammar/A2_First_Conditional.htm
- https://www.esl-lounge.com/student/grammar/2g24-first-conditional-exercise.php
- https://www.englishexercises.org/makeagame/viewgame.asp?id=3226
- https://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-1/exercises?02
- https://es.liveworksheets.com/worksheets/en/First_conditional/
SECOND CONDITIONAL
- https://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-2/exercises?02
- https://www.examenglish.com/grammar/B1_second_conditional.htm
- https://www.learnenglishfeelgood.com/grammar-secondconditional2.html
- https://www.liveworksheets.com/worksheets/en//Second_conditional/
- https://www.englisch-hilfen.de/en/exercises/if_clauses/type_2_statements.htm
PRESENT PERFECT
- https://www.perfect-english-grammar.com/present-perfect-exercise-1.html
- https://www.perfect-english-grammar.com/present-perfect-exercise-2.html
- https://www.really-learn-english.com/present-perfect-exercises.html
- http://www.focus.olsztyn.pl/en-present-perfect-tense-exercises-with-answers.html
- https://www.ecenglish.com/learnenglish/lessons/present-perfect-quiz
FOR AND SINCE
- https://www.englisch-hilfen.de/en/exercises/confusing_words/since_for.htm
- https://www.englisch-hilfen.de/en/exercises/confusing_words/since_for2.htm
- https://www.grammar.cl/Games/For_Since.htm
- http://www.adelescorner.org/grammar/for_since/for-since1.html
STILL, YET, ALREADY AND JUST
- https://www.grammar.cl/Games/Still_Yet_Already.htm
- http://www.adelescorner.org/grammar/pres_perfect/pres_perfect_yet.html
- https://www.english-grammar.at/online_exercises/tenses/t102-just-already-yet.htm
- https://www.esl-lounge.com/student/grammar/2g7-just-yet-already.php
Games
- https://www.macmillandictionary.com/verb_wheel/
- https://matchthememory.com/irregularverbs
- https://es.lyricstraining.com/
- https://www.gamestolearnenglish.com/
- https://learnenglishteens.britishcouncil.org/study-break/games
- https://www.vocabulary.cl/Games.htm
- https://quizlet.com/es
- https://quizizz.com/
I hope you have a really nice and happy summer.
All the best,
Rocío
