PAST SIMPLE EXERCISES

1) http://www.agendaweb.org/exercises/verbs/irregular-past-1.htm
2) http://www.agendaweb.org/exercises/verbs/simple-past-irregular-2
3) http://www.englishexercises.org/makeagame/viewgame.asp?id=2562

THERE IS, THERE ARE EXERCISES

1) http://www.agendaweb.org/grammar/there-is-there-are/index.html

      2) http://www.agendaweb.org/exercises/grammar/there-is-there-are.htm

3) http://www.englisch-hilfen.de/en/exercises/various/there_is_there_are.htm

4) http://www.adelescorner.org/grammar/there_is/thereis.html

5) http://www.carmenlu.com/first/grammar/thereis1_2.htm

6) http://www.englisch-hilfen.de/en/exercises/various/there_is_there_are3.htm

7) http://www.grammar.cl/Games/There_is_There_are.htm