PAST PERFECT vs. PAST SIMPLE

EXERCISES

https://english.lingolia.com/en/grammar/tenses-comparison/simple-past-past-perfect/exercises

http://www.ego4u.com/en/cram-up/grammar/simpas-pasper

http://www.englisch-hilfen.de/en/exercises/tenses/past_perfect_simple_past.htm

http://www.perfect-english-grammar.com/past-perfect-exercise-3.html



















































sadasd