6º: Passive: Present simple and past simple

 In these links you can practice the passive:

- Change from active to passive:

https://agendaweb.org/exercises/verbs/passive-voice/exercise-1

- Subject and object pronouns:

http://static.digischool.nl/en/grammar/hotpot/passive/tegenverltijd.htm

- Present simple:

https://www.perfect-english-grammar.com/passive-exercise-1.html

- Past simple:

https://www.perfect-english-grammar.com/passive-exercise-2.html

- Mixed tenses: 

https://test-english.com/grammar-points/a2/present-past-simple-passive/  (there are 3 exercises, click on the numbers at the bottom)

https://elt.oup.com/student/solutions/preint/grammar/grammar_10_012e?cc=de&selLanguage=en

https://www.englishexercises.org/makeagame/viewgame.asp?id=1870

https://www.englisch-hilfen.de/en/complex_tests/passive1/index.php