Short asnswers exercise 1

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

Short answers exercise 2

http://www.englisch-hilfen.de/en/exercises/questions/short_answers2.htm

Short answers in English exercise 3

http://www.englisch-hilfen.de/en/exercises/questions/short_answers3.htm

Present Simple or Present Continuous exercise 1

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

Present Simple or Present Continuous exercise 2

http://www.englisch-hilfen.de/en/exercises/tenses/simple_present_progressive2.htm

Present Simple or Present Continuous exercise 3

http://www.englisch-hilfen.de/en/exercises/tenses/simple_present_progressive3.htm

Question Tags  Matching exercise 1

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

Question Tags  Matching exercise 2

http://www.englisch-hilfen.de/en/exercises/questions/question_tags2.htm

Question Tags  Fill-in exercise 3

http://www.englisch-hilfen.de/en/exercises/questions/question_tags3.htm