Past simple questions and negatives exercises

 QUESTIONS

http://www.englisch-hilfen.de/en/exercises/questions/simple_past2.htm

http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?06

http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?07

http://www.agendaweb.org/verbs/past-simple-questions.html
 NEGATIVES

http://www.ego4u.com/en/cram-up/grammar/exercises?tense=3&level=2&type=negative

http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?05

http://www.agendaweb.org/verbs/past-simple-negative.html