PAST PERFECT 4

http://englishgrammarexercise.com/past-perfect-mixed-exercise/

PAST PERFECT 3

https://www.englisch-hilfen.de/en/exercises/tenses/past_perfect.htm

PAST PERFECT 2

http://mrbrownslearningspace.com/wp-content/uploads/2015/01/Past_Perfect_1.htm

PAST PERFECT 1

http://www.adelescorner.org/grammar/past_perfect/past_perfect.html

PASSIVE VOICE 3

http://englishgrammarexercise.com/active-passive-english-exercise-1/

PASSIVE VOICE 2

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

PASSIVE VOICE 1

https://agendaweb.org/exercises/verbs/passive-write-1